Gift-card rolling expiry, SvelteDate→Date purge, strict DST tests, UTC scan-location + settings legal floor

Gift-card rolling expiry (setting-driven, was dead config):
- GetGiftCardExpiryMonths(): single source of truth (business_settings
  gift_card_expiry_months, fallback 24) shared by payment handlers and the
  CleanupExpiredGiftCards job (was hardcoded 24).
- expiry_date now maintained on ALL 9 gift-card write sites (buy, topup,
  transfer, redeem, terminal payment, refund credit, till) so the refund-time
  guard at refunds.go actually fires. Schema default 12->24 + migration note;
  test-DB seed aligned. Stale "expiry_date IS NULL" test rewritten; new
  expired-card-rejected regression test.

Frontend SvelteDate purge (docs' stated convention, wide):
- All 180+ raw `new SvelteDate(...)` uses across routes/components replaced
  with parseWallClockDate (backend UTC ISO) or new Date (wall-clock
  constructors). SvelteDate imports removed. timeSlots.ts getDayWithOrdinal
  fixed. Zero SvelteDate references remain; svelte-check clean.

Strict timezone/DST testing + QA fixes:
- 8 new hermetic boundary tests: clock.DST transitions (both 2026 folds),
  closing-hours GMT vs BST, booking date-window midnight, refund-tier
  elapsed-time independence, deposit-window UTC-instant, scheduling
  LondonDateString midnight, today AT TIME ZONE window + UTC round-trip.
- today.go summary date labels fixed to London wall-clock (were showing the
  previous UTC day during BST) + regression test.
- pgx ScanLocation fixed to UTC via AfterConnect (was host-local -> JSON
  offsets depended on deployment TZ, contradicting the documented UTC
  invariant) + regression test. Registered as a new *Type to avoid a data
  race on the shared type map (caught by -race).

Admin Business Settings (setting now functional => legal floor):
- gift_card_expiry_months validation floor raised 1 -> 12 months (CMA/
  Consumer Rights Act 2015 unfair-contract-term guidance) in endpoint + UI,
  with rolling-expiry semantics shown in both display and edit form.
- 3 new expiry validation tests; 2 pre-existing message assertions updated.

Full suite 25/25 + race clean via run-tests.sh lockfile; svelte-check 0
errors/warnings; production build succeeds.

frontend/src/lib/components/account/EditRequestModal.svelte

@@ -1,6 +1,6 @@
 <script lang="ts">
 	import { apiFetch } from '$lib/utils/api';
-	import { SvelteDate, SvelteMap } from 'svelte/reactivity';
+	import { SvelteMap } from 'svelte/reactivity';
 	import { CalendarDate, getLocalTimeZone, type DateValue } from '@internationalized/date';
 	import { toast } from 'svelte-sonner';
 	import { extractErrorMessage } from '$lib/utils/toast-safe';
@@ -16,7 +16,7 @@
 		getLunchProtectionForSlots,
 		timeToMinutes
 	} from '$lib/lunchProtection';
-	import { formatLocalDateTime, getLondonTodayCalendarDate } from '$lib/utils/timeSlots';
+	import { formatLocalDateTime, getLondonTodayCalendarDate, parseWallClockDate } from '$lib/utils/timeSlots';
 	import ClockIcon from '@lucide/svelte/icons/clock';
 	import RefreshCwIcon from '@lucide/svelte/icons/refresh-cw';
 	import ArrowLeftIcon from '@lucide/svelte/icons/arrow-left';
@@ -71,7 +71,7 @@
 	// ─── Date constants ─────────────────────────────────────
 	const todayCalendarDate = getLondonTodayCalendarDate();
 	const minDate = todayCalendarDate;
-	const maxDate = new SvelteDate(
+	const maxDate = new Date(
 		todayCalendarDate.year,
 		todayCalendarDate.month - 1,
 		todayCalendarDate.day
@@ -85,7 +85,7 @@
 	let placeholderDate = $state<CalendarDate>(minDate);
 
 	const hoursUntilAppointment = $derived(
-		(new SvelteDate(booking.start_time).getTime() - new SvelteDate().getTime()) / (1000 * 60 * 60)
+		(parseWallClockDate(booking.start_time).getTime() - new Date().getTime()) / (1000 * 60 * 60)
 	);
 	const hasPayments = $derived((booking.amount_paid ?? 0) > 0);
 	const noticePeriodBlocked = $derived(
@@ -420,7 +420,7 @@
 	$effect(() => {
 		if (editMode === 'services' && !servicesHoursFetched) {
 			servicesHoursFetched = true;
-			const bookingDate = new SvelteDate(booking.start_time);
+			const bookingDate = parseWallClockDate(booking.start_time);
 			const calDate = new CalendarDate(
 				bookingDate.getFullYear(),
 				bookingDate.getMonth() + 1,
@@ -445,8 +445,8 @@
 			return;
 		editRequestAutoSelectDone = true;
 
-		const currentDate = new SvelteDate(getLondonTodayCalendarDate().toString() + 'T00:00:00');
-		const maxDateJs = new SvelteDate(
+		const currentDate = new Date(getLondonTodayCalendarDate().toString() + 'T00:00:00');
+		const maxDateJs = new Date(
 			maxCalendarDate.year,
 			maxCalendarDate.month - 1,
 			maxCalendarDate.day
@@ -458,7 +458,7 @@
 		const daysToCheck = Math.min(daysDifference, 180);
 
 		for (let i = 0; i <= daysToCheck; i++) {
-			const nextDate = new SvelteDate(currentDate);
+			const nextDate = new Date(currentDate);
 			nextDate.setDate(currentDate.getDate() + i);
 			const dateStr = nextDate.toLocaleDateString('en-CA', { timeZone: 'Europe/London' });
 
@@ -637,7 +637,7 @@
 	function calculateRemainingTime(): number {
 		if (!workingHours || !availableHours) return 0;
 
-		const bookingDate = new SvelteDate(booking.start_time);
+		const bookingDate = parseWallClockDate(booking.start_time);
 		const dateStr = bookingDate.toLocaleDateString('en-CA', { timeZone: 'Europe/London' });
 
 		const dayWH = workingHours[dateStr];

frontend/src/lib/components/account/UserBookingModal.svelte

@@ -4,7 +4,6 @@
 	import { authStore } from '$lib/stores/auth.svelte';
 	import { apiFetch } from '$lib/utils/api';
 	import { ensureBusinessInfo, getBusinessInfo } from '$lib/stores/businessInfo.svelte';
-	import { SvelteDate } from 'svelte/reactivity';
 	import { toast } from 'svelte-sonner';
 	import { extractErrorMessage } from '$lib/utils/toast-safe';
 	import * as Modal from '$lib/components/ui/dialog';
@@ -56,7 +55,7 @@
 	);
 
 	const isFutureBooking = $derived(
-		selectedBooking ? new SvelteDate(selectedBooking.start_time) > new SvelteDate() : false
+		selectedBooking ? parseWallClockDate(selectedBooking.start_time) > new Date() : false
 	);
 
 	const hasPayments = $derived(
@@ -112,7 +111,7 @@
 
 	const hoursUntilAppointment = $derived(
 		selectedBooking
-			? (new SvelteDate(selectedBooking.start_time).getTime() - new SvelteDate().getTime()) /
+			? (parseWallClockDate(selectedBooking.start_time).getTime() - new Date().getTime()) /
 					(1000 * 60 * 60)
 			: Infinity
 	);
@@ -555,7 +554,7 @@ ${hasVAT ? `<p class="warning">VAT is included at ${biz?.default_vat_rate ?? 20}
 				</div>
 
 				{#if selectedBooking}
-					{@const isPastBooking = new SvelteDate(selectedBooking.start_time) < new SvelteDate()}
+					{@const isPastBooking = parseWallClockDate(selectedBooking.start_time) < new Date()}
 					{@const isUnpaid = selectedBooking.amount_due > 0}
 					{@const showChip = !isPastBooking || isUnpaid}
 					{@const isConfirmedOrLater = ['confirmed', 'in_progress', 'completed'].includes(
@@ -849,7 +848,7 @@ ${hasVAT ? `<p class="warning">VAT is included at ${biz?.default_vat_rate ?? 20}
 												</div>
 											{/if}
 											<div class="mt-1 text-xs text-gray-400">
-												{new SvelteDate(payment.created_at).toLocaleString()}
+												{parseWallClockDate(payment.created_at).toLocaleString()}
 											</div>
 										</div>
 										<div class="text-right font-semibold">
@@ -875,7 +874,7 @@ ${hasVAT ? `<p class="warning">VAT is included at ${biz?.default_vat_rate ?? 20}
 												{refund.reason || 'Refund processed'}
 											</div>
 											<div class="mt-1 text-xs text-gray-400">
-												{new SvelteDate(refund.created_at).toLocaleString()}
+												{parseWallClockDate(refund.created_at).toLocaleString()}
 											</div>
 										</div>
 										<div class="text-right font-semibold text-red-600">

frontend/src/lib/components/admin/ApprovalModal.svelte

@@ -1,5 +1,4 @@
 <script lang="ts">
-	import { SvelteDate } from 'svelte/reactivity';
 	import { apiFetch } from '$lib/utils/api';
 	import { toast } from 'svelte-sonner';
 	import { extractErrorMessage, sanitizeText } from '$lib/utils/toast-safe';
@@ -161,12 +160,12 @@
 	function findOldestBooking(): { id: string; isCurrent: boolean } | null {
 		if (overlappingBookings.length === 0) return null;
 
-		const currentCreatedAt = new SvelteDate(booking.created_at).getTime();
+		const currentCreatedAt = parseWallClockDate(booking.created_at).getTime();
 		let oldestId = booking.id;
 		let oldestTime = currentCreatedAt;
 
 		for (const ob of overlappingBookings) {
-			const obTime = new SvelteDate(ob.created_at).getTime();
+			const obTime = parseWallClockDate(ob.created_at).getTime();
 			if (obTime < oldestTime) {
 				oldestTime = obTime;
 				oldestId = ob.id;
@@ -450,7 +449,7 @@
 											{ob.status}
 										</span>
 										<div class="mt-1 text-xs text-gray-400">
-											{new SvelteDate(ob.created_at).toLocaleDateString('en-GB', {
+											{parseWallClockDate(ob.created_at).toLocaleDateString('en-GB', {
 												day: 'numeric',
 												month: 'short',
 												hour: 'numeric',

frontend/src/lib/components/admin/BookingCreateModal.svelte

@@ -2,7 +2,7 @@
 	import { apiFetch } from '$lib/utils/api';
 	import { toast } from 'svelte-sonner';
 	import { extractErrorMessage } from '$lib/utils/toast-safe';
-	import { SvelteDate, SvelteSet, SvelteURLSearchParams } from 'svelte/reactivity';
+	import { SvelteSet, SvelteURLSearchParams } from 'svelte/reactivity';
 	import { CalendarDate, getLocalTimeZone, type DateValue } from '@internationalized/date';
 	import { isValidUKPhone, toE164UK } from '$lib/utils/phone';
 	import { formatUserName } from '$lib/utils/nameDisplay';
@@ -217,7 +217,7 @@
 	// Date Boundaries
 	const today = getLondonTodayCalendarDate();
 	const minDate = today;
-	const maxDate = new SvelteDate(today.year, today.month - 1, today.day);
+	const maxDate = new Date(today.year, today.month - 1, today.day);
 	maxDate.setMonth(today.month - 1 + 6);
 	const maxCalendarDate = new CalendarDate(
 		maxDate.getFullYear(),
@@ -397,8 +397,8 @@
 			!bookingCreateAutoSelectDone
 		) {
 			bookingCreateAutoSelectDone = true;
-			const now = new SvelteDate(getLondonTodayCalendarDate().toString() + 'T00:00:00');
-			const maxDateJs = new SvelteDate(
+			const now = new Date(getLondonTodayCalendarDate().toString() + 'T00:00:00');
+			const maxDateJs = new Date(
 				maxCalendarDate.year,
 				maxCalendarDate.month - 1,
 				maxCalendarDate.day
@@ -408,7 +408,7 @@
 			);
 			const daysToCheck = Math.min(daysDifference, 180);
 			for (let i = 0; i <= daysToCheck; i++) {
-				const checkDate = new SvelteDate(now);
+				const checkDate = new Date(now);
 				checkDate.setDate(now.getDate() + i);
 				const dateStr = checkDate.toLocaleDateString('en-CA', { timeZone: 'Europe/London' });
 				const calDate = new CalendarDate(
@@ -757,7 +757,7 @@
 				return;
 			}
 
-			const now = new SvelteDate();
+			const now = new Date();
 			const diff = reservationExpiresAt.getTime() - now.getTime();
 
 			if (diff <= 0) {

frontend/src/lib/components/admin/BookingModal.svelte

@@ -3,7 +3,7 @@
 	import { apiFetch } from '$lib/utils/api';
 	import { toast } from 'svelte-sonner';
 	import { extractErrorMessage } from '$lib/utils/toast-safe';
-	import { SvelteDate } from 'svelte/reactivity';
+	import { parseWallClockDate } from '$lib/utils/timeSlots';
 	import * as Modal from '$lib/components/ui/dialog';
 	import { Button } from '$lib/components/ui/button';
 	import { Checkbox } from '$lib/components/ui/checkbox';
@@ -48,7 +48,7 @@
 	const balanceDue = $derived(selectedBooking ? computeBalanceDue(selectedBooking) : 0);
 	const hoursUntilAppt = $derived(
 		selectedBooking
-			? (new SvelteDate(selectedBooking.start_time).getTime() - new SvelteDate().getTime()) /
+			? (parseWallClockDate(selectedBooking.start_time).getTime() - new Date().getTime()) /
 					(1000 * 60 * 60)
 			: Infinity
 	);

frontend/src/lib/components/admin/BookingsCard.svelte

@@ -1,6 +1,7 @@
 <script lang="ts">
 	import { apiFetch } from '$lib/utils/api';
-	import { SvelteDate, SvelteURLSearchParams } from 'svelte/reactivity';
+	import { SvelteURLSearchParams } from 'svelte/reactivity';
+	import { parseWallClockDate } from '$lib/utils/timeSlots';
 	import { toast } from 'svelte-sonner';
 	import { extractErrorMessage } from '$lib/utils/toast-safe';
 
@@ -117,10 +118,10 @@
 
 	// Format booking date/time
 	function formatBookingDateTime(startTime: string): string {
-		const date = new SvelteDate(startTime);
-		const now = new SvelteDate();
-		const today = new SvelteDate(now.getFullYear(), now.getMonth(), now.getDate());
-		const bookingDate = new SvelteDate(date.getFullYear(), date.getMonth(), date.getDate());
+		const date = parseWallClockDate(startTime);
+		const now = new Date();
+		const today = new Date(now.getFullYear(), now.getMonth(), now.getDate());
+		const bookingDate = new Date(date.getFullYear(), date.getMonth(), date.getDate());
 		const daysDiff = Math.floor((bookingDate.getTime() - today.getTime()) / (1000 * 60 * 60 * 24));
 
 		const days = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'];

frontend/src/lib/components/admin/BusinessSettings.svelte

@@ -143,7 +143,9 @@
 		if (value == null || value === '') return 'Required';
 		const num = Number(value);
 		if (isNaN(num)) return 'Must be a number';
-		if (num < 1) return 'Must be at least 1';
+		// Legal floor: CMA guidance flags sub-12-month expiry windows as an
+		// unfair contract term under the Consumer Rights Act 2015.
+		if (num < 12) return 'Must be at least 12 months';
 		return '';
 	}
 
@@ -385,6 +387,10 @@
 						<div>
 							<span class="text-xs text-muted-foreground">Expiry Period</span>
 							<p class="text-sm font-medium">{settings.gift_card_expiry_months} months</p>
+							<p class="text-xs text-muted-foreground">
+								Rolling from last use — each balance check, top-up, redemption or payment
+								resets the timer.
+							</p>
 						</div>
 						<div>
 							<span class="text-xs text-muted-foreground">Voucher Type</span>
@@ -609,11 +615,16 @@
 						<Input
 							id="gift_card_expiry_months"
 							type="number"
-							min="1"
+							min="12"
 							bind:value={form.gift_card_expiry_months}
 							oninput={() => validateField('gift_card_expiry_months')}
 							onblur={() => validateField('gift_card_expiry_months')}
 						/>
+						<p class="text-xs text-muted-foreground">
+							Rolling expiry: the timer resets on every use (balance check, top-up, redeem,
+							payment). 24 months is the recommended default; CMA guidance flags sub-12-month
+							windows as an unfair contract term.
+						</p>
 						{#if formErrors.gift_card_expiry_months}
 							<p class="text-xs text-destructive">{formErrors.gift_card_expiry_months}</p>
 						{/if}

frontend/src/lib/components/admin/DiscountsManagement.svelte

@@ -1,5 +1,4 @@
 <script lang="ts">
-	import { SvelteDate } from 'svelte/reactivity';
 	import { apiFetch } from '$lib/utils/api';
 	import { range } from '$lib/utils/format';
 	import { toast } from 'svelte-sonner';
@@ -92,7 +91,7 @@
 		if (form.discount_percent <= 0 || form.discount_percent > 100) return false;
 		if (form.campaign_type === 'time_based') {
 			if (!form.start_date || !form.end_date) return false;
-			if (new SvelteDate(form.end_date) < new SvelteDate(form.start_date)) return false;
+			if (new Date(form.end_date) < new Date(form.start_date)) return false;
 		}
 		if (form.campaign_type === 'milestone') {
 			if (form.milestone_value <= 0) return false;

frontend/src/lib/components/admin/EditBookingModal.svelte

@@ -1,6 +1,5 @@
 <script lang="ts">
 	import { apiFetch } from '$lib/utils/api';
-	import { SvelteDate } from 'svelte/reactivity';
 	import { toast } from 'svelte-sonner';
 	import { extractErrorMessage } from '$lib/utils/toast-safe';
 	import { formatDuration } from '$lib/utils/format';
@@ -280,10 +279,10 @@
 	const maxAvailableDuration = $derived.by(() => {
 		if (!booking?.start_time || !nextAppointmentStart) return null;
 
-		const bookingStart = new SvelteDate(booking.start_time).getTime();
+		const bookingStart = parseWallClockDate(booking.start_time).getTime();
 		const currentDurationMs = totalDuration * 60 * 1000;
 		const bookingEnd = bookingStart + currentDurationMs;
-		const nextStart = new SvelteDate(nextAppointmentStart).getTime();
+		const nextStart = parseWallClockDate(nextAppointmentStart).getTime();
 
 		const availableMs = nextStart - bookingEnd;
 		return Math.max(0, Math.floor(availableMs / (60 * 1000)));
@@ -600,7 +599,7 @@
 											{/if}
 										</div>
 										<div class="mt-1 text-xs text-gray-400">
-											{new SvelteDate(payment.created_at).toLocaleDateString('en-GB', {
+											{parseWallClockDate(payment.created_at).toLocaleDateString('en-GB', {
 												day: 'numeric',
 												month: 'short',
 												year: 'numeric'

frontend/src/lib/components/admin/GiftCardsManagement.svelte

@@ -13,7 +13,8 @@
 	import { isSquareConfigured } from '$lib/square/square';
 	import { range } from '$lib/utils/format';
 	import { formatUserName } from '$lib/utils/nameDisplay';
-	import { SvelteDate, SvelteURLSearchParams } from 'svelte/reactivity';
+	import { parseWallClockDate } from '$lib/utils/timeSlots';
+	import { SvelteURLSearchParams } from 'svelte/reactivity';
 
 	interface GiftCard {
 		id: string;
@@ -726,7 +727,7 @@
 	}
 
 	function formatDate(dateStr: string): string {
-		return new SvelteDate(dateStr).toLocaleDateString('en-GB', {
+		return parseWallClockDate(dateStr).toLocaleDateString('en-GB', {
 			day: 'numeric',
 			month: 'short',
 			year: 'numeric',
@@ -736,14 +737,14 @@
 
 	function getExpiryDate(lastUsedAt?: string): Date | null {
 		if (!lastUsedAt) return null;
-		const date = new SvelteDate(lastUsedAt);
+		const date = parseWallClockDate(lastUsedAt);
 		date.setMonth(date.getMonth() + 24);
 		return date;
 	}
 
 	function isExpired(lastUsedAt?: string): boolean {
 		const expiry = getExpiryDate(lastUsedAt);
-		return expiry !== null && expiry < new SvelteDate();
+		return expiry !== null && expiry < new Date();
 	}
 
 	// =============== Sorting ===============
@@ -802,7 +803,7 @@
 					return (a.amount_remaining - b.amount_remaining) * mul;
 				case 'created':
 					return (
-						(new SvelteDate(a.created_at).getTime() - new SvelteDate(b.created_at).getTime()) * mul
+						(parseWallClockDate(a.created_at).getTime() - parseWallClockDate(b.created_at).getTime()) * mul
 					);
 				case 'status': {
 					const aVal = a.redeemed_by ? 2 : a.amount_remaining === 0 ? 1 : 0;
@@ -833,7 +834,7 @@
 					return (a.balance - b.balance) * mul;
 				case 'updated':
 					return (
-						(new SvelteDate(a.updated_at).getTime() - new SvelteDate(b.updated_at).getTime()) * mul
+						(parseWallClockDate(a.updated_at).getTime() - parseWallClockDate(b.updated_at).getTime()) * mul
 					);
 				default:
 					return 0;

frontend/src/lib/components/admin/HolidayHours.svelte

@@ -1,5 +1,4 @@
 <script lang="ts">
-	import { SvelteDate } from 'svelte/reactivity';
 	import { toast } from 'svelte-sonner';
 	import { extractErrorMessage, sanitizeText } from '$lib/utils/toast-safe';
 	import { apiFetch } from '$lib/utils/api';
@@ -178,9 +177,9 @@
 	}
 
 	function addWeeksToException(fromISO: string, toISO: string, dest: string[]) {
-		const from = new SvelteDate(fromISO + 'T00:00:00Z');
-		const to = new SvelteDate(toISO + 'T00:00:00Z');
-		const first = new SvelteDate(from);
+		const from = new Date(fromISO + 'T00:00:00Z');
+		const to = new Date(toISO + 'T00:00:00Z');
+		const first = new Date(from);
 		const day = first.getDay();
 		const daysToMonday = day === 0 ? -6 : 1 - day;
 
@@ -188,8 +187,8 @@
 		first.setDate(first.getDate() + daysToMonday);
 
 		// Add all Mondays in the range
-		for (let d = new SvelteDate(first); d <= to; d.setDate(d.getDate() + 7)) {
-			dest.push(isoDateOf(new SvelteDate(d)));
+		for (let d = new Date(first); d <= to; d.setDate(d.getDate() + 7)) {
+			dest.push(isoDateOf(new Date(d)));
 		}
 	}
 
@@ -487,7 +486,7 @@
 										{g.weekStarts
 											?.slice(0, 3)
 											.map((w) =>
-												new SvelteDate(w).toLocaleDateString('en-GB', {
+												new Date(w).toLocaleDateString('en-GB', {
 													day: 'numeric',
 													month: 'short'
 												})
@@ -869,7 +868,7 @@
 							<div class="grid grid-cols-2 gap-2 md:grid-cols-3">
 								{#each viewingException.weekStarts as week (week)}
 									<div class="text-sm">
-										Week of {new SvelteDate(week).toLocaleDateString('en-GB', {
+										Week of {new Date(week).toLocaleDateString('en-GB', {
 											day: 'numeric',
 											month: 'short',
 											year: 'numeric'

frontend/src/lib/components/admin/RescheduleModal.svelte

@@ -1,5 +1,5 @@
 <script lang="ts">
-	import { SvelteDate, SvelteSet } from 'svelte/reactivity';
+	import { SvelteSet } from 'svelte/reactivity';
 	import { toast } from 'svelte-sonner';
 	import { extractErrorMessage } from '$lib/utils/toast-safe';
 	import { apiFetch } from '$lib/utils/api';
@@ -58,7 +58,7 @@
 
 	const today = getLondonTodayCalendarDate();
 	const minDate = today;
-	const maxDate = new SvelteDate(today.year, today.month - 1, today.day);
+	const maxDate = new Date(today.year, today.month - 1, today.day);
 	maxDate.setMonth(today.month - 1 + 6);
 	const maxCalendarDate = new CalendarDate(
 		maxDate.getFullYear(),
@@ -67,7 +67,7 @@
 	);
 
 	const hoursUntilAppointment = $derived(
-		(new SvelteDate(booking.start_time).getTime() - new SvelteDate().getTime()) / (1000 * 60 * 60)
+		(parseWallClockDate(booking.start_time).getTime() - new Date().getTime()) / (1000 * 60 * 60)
 	);
 	const hasPayments = $derived((booking.amount_paid ?? 0) > 0);
 	const showNoticeWarning = $derived(
@@ -380,8 +380,8 @@
 			!rescheduleAutoSelectDone
 		) {
 			rescheduleAutoSelectDone = true;
-			const now = new SvelteDate(getLondonTodayCalendarDate().toString() + 'T00:00:00');
-			const maxDateJs = new SvelteDate(
+			const now = new Date(getLondonTodayCalendarDate().toString() + 'T00:00:00');
+			const maxDateJs = new Date(
 				maxCalendarDate.year,
 				maxCalendarDate.month - 1,
 				maxCalendarDate.day
@@ -391,7 +391,7 @@
 			);
 			const daysToCheck = Math.min(daysDifference, 180);
 			for (let i = 1; i <= daysToCheck; i++) {
-				const checkDate = new SvelteDate(now);
+				const checkDate = new Date(now);
 				checkDate.setDate(now.getDate() + i);
 				const dateStr = checkDate.toLocaleDateString('en-CA', { timeZone: 'Europe/London' });
 				const calDate = new CalendarDate(

frontend/src/lib/components/admin/TimeBlockers.svelte

@@ -1,5 +1,4 @@
 <script lang="ts">
-	import { SvelteDate } from 'svelte/reactivity';
 	import { apiFetch } from '$lib/utils/api';
 	import { CalendarDate } from '@internationalized/date';
 	import { toast } from 'svelte-sonner';
@@ -123,7 +122,7 @@
 
 	function getWorkingHoursForDate(dateStr: string): WorkingHourRow | null {
 		if (!dateStr || defaultHours.length === 0) return null;
-		const d = new SvelteDate(dateStr + 'T00:00:00Z');
+		const d = new Date(dateStr + 'T00:00:00Z');
 		const jsDay = d.getDay();
 		const weekday = jsDay === 0 ? 6 : jsDay - 1;
 		return defaultHours.find((h) => h.weekday === weekday) ?? null;
@@ -186,8 +185,8 @@
 	});
 
 	function formatRelativeTime(iso: string): string {
-		const d = new SvelteDate(iso);
-		const now = new SvelteDate();
+		const d = parseWallClockDate(iso);
+		const now = new Date();
 		const diffMs = d.getTime() - now.getTime();
 		if (diffMs < 0) {
 			const absMin = Math.floor(Math.abs(diffMs) / 60000);
@@ -205,7 +204,7 @@
 
 	const sortedBlockers = $derived.by(() => {
 		return [...blockers].sort(
-			(a, b) => new SvelteDate(a.start_time).getTime() - new SvelteDate(b.start_time).getTime()
+			(a, b) => parseWallClockDate(a.start_time).getTime() - parseWallClockDate(b.start_time).getTime()
 		);
 	});
 
@@ -297,8 +296,8 @@
 			return;
 		}
 
-		const blockerStart = new SvelteDate(startIso);
-		const blockerEnd = new SvelteDate(endIso);
+		const blockerStart = new Date(startIso);
+		const blockerEnd = new Date(endIso);
 		if (blockerEnd.getTime() <= blockerStart.getTime()) {
 			overlappingBookings = [];
 			hasOverlap = false;
@@ -322,8 +321,8 @@
 				const allBookings: OverlappingBooking[] = data.bookings || [];
 				// Client-side filter: only bookings that overlap with the proposed blocker timespan
 				const filtered = allBookings.filter((b) => {
-					const bStart = new SvelteDate(b.start_time);
-					const bEnd = new SvelteDate(bStart.getTime() + b.duration_minutes * 60000);
+					const bStart = parseWallClockDate(b.start_time);
+					const bEnd = new Date(bStart.getTime() + b.duration_minutes * 60000);
 					return bStart < blockerEnd && bEnd > blockerStart;
 				});
 				overlappingBookings = filtered;
@@ -774,7 +773,7 @@
 							<p class="text-sm text-gray-400">Select a date first</p>
 						{:else if !selectedWorkingHours.isOpen}
 							<p class="text-sm text-red-500">
-								Closed on {new SvelteDate(newStartDate + 'T00:00:00Z').toLocaleDateString('en-GB', {
+								Closed on {new Date(newStartDate + 'T00:00:00Z').toLocaleDateString('en-GB', {
 									weekday: 'long'
 								})}
 							</p>

frontend/src/lib/components/admin/UserModal.svelte

@@ -1,5 +1,5 @@
 <script lang="ts">
-	import { SvelteDate, SvelteURLSearchParams } from 'svelte/reactivity';
+	import { SvelteURLSearchParams } from 'svelte/reactivity';
 	import { toast } from 'svelte-sonner';
 	import { extractErrorMessage } from '$lib/utils/toast-safe';
 	import { apiFetch } from '$lib/utils/api';
@@ -325,13 +325,13 @@
 							<div class="font-medium">
 								{#if selectedUser.dateOfBirth}
 									{(() => {
-										const dob = new SvelteDate(selectedUser.dateOfBirth);
+										const dob = new Date(selectedUser.dateOfBirth);
 										const dateStr = dob.toLocaleDateString('en-US', {
 											year: 'numeric',
 											month: 'long',
 											day: 'numeric'
 										});
-										const today = new SvelteDate();
+										const today = new Date();
 										let age = today.getFullYear() - dob.getFullYear();
 										const m = today.getMonth() - dob.getMonth();
 										if (m < 0 || (m === 0 && today.getDate() < dob.getDate())) age--;
@@ -346,7 +346,7 @@
 							<div class="text-xs text-gray-500">First Visit</div>
 							<div class="font-medium">
 								{#if customerRelationship?.firstVisitDate}
-									{new SvelteDate(customerRelationship.firstVisitDate).toLocaleDateString('en-US', {
+									{new Date(customerRelationship.firstVisitDate).toLocaleDateString('en-US', {
 										year: 'numeric',
 										month: 'short',
 										day: 'numeric'
@@ -360,7 +360,7 @@
 							<div class="text-xs text-gray-500">Last Visit</div>
 							<div class="font-medium">
 								{#if customerRelationship?.lastVisitDate}
-									{new SvelteDate(customerRelationship.lastVisitDate).toLocaleDateString('en-US', {
+									{new Date(customerRelationship.lastVisitDate).toLocaleDateString('en-US', {
 										weekday: 'short',
 										day: 'numeric',
 										month: 'short',

frontend/src/lib/components/admin/WalkInBooking.svelte

@@ -3,7 +3,6 @@
 	import WalkInCreateModal from '$lib/components/admin/WalkInCreateModal.svelte';
 	import { CalendarDate } from '@internationalized/date';
 	import { apiFetch } from '$lib/utils/api';
-	import { SvelteDate } from 'svelte/reactivity';
 	import { onMount, onDestroy } from 'svelte';
 	import { toast } from 'svelte-sonner';
 	import { extractErrorMessage } from '$lib/utils/toast-safe';
@@ -28,7 +27,7 @@
 	} | null>(null);
 	let loading = $state(true);
 	let noSlotsToday = $state(false);
-	let currentTime = new SvelteDate();
+	let currentTime = new Date();
 
 	let _reservationId = $state<string | null>(null);
 	let reservationExpiresAt = $state<Date | null>(null);
@@ -58,7 +57,7 @@
 		fetchShortestService();
 
 		const interval = setInterval(() => {
-			currentTime = new SvelteDate();
+			currentTime = new Date();
 		}, 60000);
 
 		return () => clearInterval(interval);
@@ -176,7 +175,7 @@
 		noSlotsToday = false;
 
 		try {
-			const now = new SvelteDate();
+			const now = new Date();
 			const londonDateStr = new Date().toLocaleDateString('en-CA', { timeZone: 'Europe/London' });
 			const [y, m, d] = londonDateStr.split('-').map(Number);
 			const today = new CalendarDate(y, m, d);
@@ -275,7 +274,7 @@
 			const londonDateStr = new Date().toLocaleDateString('en-CA', { timeZone: 'Europe/London' });
 			const [y, m, d] = londonDateStr.split('-').map(Number);
 			const [hours, minutes] = startTime.split(':').map(Number);
-			const start = new SvelteDate(y, m - 1, d, hours, minutes, 0, 0);
+			const start = new Date(y, m - 1, d, hours, minutes, 0, 0);
 			const startTimeISO = formatLocalDateTime(start);
 
 			const response = await apiFetch('/api/admin/bookings/reserve', {
@@ -329,7 +328,7 @@
 				return;
 			}
 
-			const now = new SvelteDate();
+			const now = new Date();
 			const diff = reservationExpiresAt.getTime() - now.getTime();
 
 			if (diff <= 0) {
@@ -369,7 +368,7 @@
 			const liveRemaining = getLiveRemainingMinutes() ?? 0;
 			if (liveRemaining > RESERVATION_TTL) {
 				// Available now with >15min remaining — reserve from now to slot end
-				const now = new SvelteDate();
+				const now = new Date();
 				const currentMin = now.getHours() * 60 + now.getMinutes();
 				reserveTime = `${String(now.getHours()).padStart(2, '0')}:${String(now.getMinutes()).padStart(2, '0')}`;
 				reserveDuration = slotInfo.slotEndMinutes! - currentMin;

frontend/src/lib/components/admin/WalkInCreateModal.svelte

@@ -3,7 +3,7 @@
 	import { apiFetch } from '$lib/utils/api';
 	import { toast } from 'svelte-sonner';
 	import { extractErrorMessage } from '$lib/utils/toast-safe';
-	import { SvelteDate, SvelteURLSearchParams } from 'svelte/reactivity';
+	import { SvelteURLSearchParams } from 'svelte/reactivity';
 	import { isValidUKPhone, toE164UK } from '$lib/utils/phone';
 	import { formatUserName } from '$lib/utils/nameDisplay';
 	import { formatLocalDateTime } from '$lib/utils/timeSlots';
@@ -243,7 +243,7 @@
 				return;
 			}
 
-			const now = new SvelteDate();
+			const now = new Date();
 			const diff = reservationExpiresAt.getTime() - now.getTime();
 
 			if (diff <= 0) {
@@ -479,7 +479,7 @@
 				const [hours, minutes] = availableStartTime.split(':').map(Number);
 				const londonDateStr = new Date().toLocaleDateString('en-CA', { timeZone: 'Europe/London' });
 				const [y, m, d] = londonDateStr.split('-').map(Number);
-				start = new SvelteDate(y, m - 1, d, hours, minutes, 0, 0);
+				start = new Date(y, m - 1, d, hours, minutes, 0, 0);
 			} else {
 				// Fallback: Calculate immediate start time (rounded to next 15 min)
 				const londonDateStr = new Date().toLocaleDateString('en-CA', { timeZone: 'Europe/London' });
@@ -491,8 +491,8 @@
 				});
 				const [y, m, d] = londonDateStr.split('-').map(Number);
 				const [h, min] = londonTimeStr.split(':').map(Number);
-				const now = new SvelteDate(y, m - 1, d, h, min, 0, 0);
-				start = new SvelteDate(now);
+				const now = new Date(y, m - 1, d, h, min, 0, 0);
+				start = new Date(now);
 				const minutes = start.getMinutes();
 				const remainder = 15 - (minutes % 15);
 				if (remainder !== 15 && remainder !== 0) {

frontend/src/lib/components/admin/WeeklySchedule.svelte

@@ -1,5 +1,4 @@
 <script lang="ts">
-	import { SvelteDate } from 'svelte/reactivity';
 	import { toast } from 'svelte-sonner';
 	import { extractErrorMessage } from '$lib/utils/toast-safe';
 	import { browser } from '$app/environment';
@@ -229,7 +228,7 @@
 	}
 
 	function getDefaultEffectiveDate(): string {
-		const d = new SvelteDate();
+		const d = new Date();
 		d.setDate(d.getDate() + 1);
 		return d.toISOString().slice(0, 10);
 	}

frontend/src/lib/components/booking/BookingFlow.svelte

@@ -27,7 +27,6 @@
 	import { toast } from 'svelte-sonner';
 	import { extractErrorMessage } from '$lib/utils/toast-safe';
 	import { onDestroy } from 'svelte';
-	import { SvelteDate } from 'svelte/reactivity';
 
 	// Components
 	import BookingActions from '$lib/components/booking/BookingActions.svelte';
@@ -41,7 +40,7 @@
 	import { POLICY } from '$lib/constants/policy';
 	import UserPaymentModal from '$lib/components/payments/UserPaymentModal.svelte';
 	import { extractBookedSlots, getLunchProtectionForSlots } from '$lib/lunchProtection';
-	import { formatLocalDateTime, getLondonTodayCalendarDate } from '$lib/utils/timeSlots';
+	import { formatLocalDateTime, getLondonTodayCalendarDate, parseWallClockDate } from '$lib/utils/timeSlots';
 	import { generateUUID } from '$lib/utils/uuid';
 
 	import type {
@@ -575,7 +574,7 @@
 				return;
 			}
 
-			const now = new SvelteDate();
+			const now = new Date();
 			const diff = reservationExpiresAt.getTime() - now.getTime();
 
 			if (diff <= 0) {
@@ -685,7 +684,7 @@
 	// Initialize date boundaries
 	const today = getLondonTodayCalendarDate();
 	const minDate = today;
-	const maxDate = new SvelteDate(today.year, today.month - 1, today.day);
+	const maxDate = new Date(today.year, today.month - 1, today.day);
 	maxDate.setMonth(today.month - 1 + 6);
 	const maxCalendarDate = new CalendarDate(
 		maxDate.getFullYear(),
@@ -756,8 +755,8 @@
 		) {
 			bookingFlowAutoSelectDone = true;
 
-			const currentDate = new SvelteDate(getLondonTodayCalendarDate().toString() + 'T00:00:00');
-			const maxDateJs = new SvelteDate(
+			const currentDate = new Date(getLondonTodayCalendarDate().toString() + 'T00:00:00');
+			const maxDateJs = new Date(
 				maxCalendarDate.year,
 				maxCalendarDate.month - 1,
 				maxCalendarDate.day
@@ -769,7 +768,7 @@
 			const daysToCheck = Math.min(daysDifference, 180);
 
 			for (let i = 1; i <= daysToCheck; i++) {
-				const nextDate = new SvelteDate(currentDate);
+				const nextDate = new Date(currentDate);
 				nextDate.setDate(currentDate.getDate() + i);
 				const dateStr = nextDate.toLocaleDateString('en-CA', { timeZone: 'Europe/London' });
 
@@ -992,7 +991,7 @@
 	// =============== Time Slot Generation ===============
 	function calculateEndTime(startTime: string, durationMinutes: number): string {
 		const [hours, minutes] = startTime.split(':').map(Number);
-		const date = new SvelteDate();
+		const date = new Date();
 		date.setHours(hours, minutes, 0, 0);
 		date.setMinutes(date.getMinutes() + durationMinutes);
 		const endHours = date.getHours().toString().padStart(2, '0');
@@ -1253,7 +1252,7 @@
 				15,
 				false
 			);
-			const now = new SvelteDate();
+			const now = new Date();
 			const validSlots = availableSlots.filter((t) => {
 				if (lunchProtection.get(t)?.isBlocked) return false;
 				if (userDepositsRequired > 0) {
@@ -1410,7 +1409,7 @@
 	}
 
 	function getDayWithOrdinal(date: CalendarDate): string {
-		const monthName = new SvelteDate(date.year, date.month - 1, date.day).toLocaleDateString(
+		const monthName = new Date(date.year, date.month - 1, date.day).toLocaleDateString(
 			'en-GB',
 			{
 				month: 'long'
@@ -2131,7 +2130,7 @@
 		{#if currentStep === finalStep}
 			{#if confirmedBooking}
 				{@const isRequested = confirmedBooking.notes && confirmedBooking.notes.length > 0}
-				{@const bookingDate = new SvelteDate(confirmedBooking.start_time)}
+				{@const bookingDate = parseWallClockDate(confirmedBooking.start_time)}
 				{@const dateStr = bookingDate.toLocaleDateString('en-GB', {
 					weekday: 'long',
 					day: 'numeric',
@@ -2446,8 +2445,8 @@
 					deposit_paid: bk.deposit_paid,
 					payments: bk.payments,
 					duration_minutes: bk.duration_minutes,
-					created_at: new SvelteDate().toISOString(),
-					updated_at: new SvelteDate().toISOString()
+					created_at: new Date().toISOString(),
+					updated_at: new Date().toISOString()
 				}}
 				onClose={() => (showPayEarlyModal = false)}
 				onComplete={() => {

frontend/src/lib/components/layout/BusinessHours.svelte

@@ -1,5 +1,4 @@
 <script lang="ts">
-	import { SvelteDate } from 'svelte/reactivity';
 	import { onMount, onDestroy } from 'svelte';
 	import { formatTime } from '$lib/utils/timeSlots';
 
@@ -81,7 +80,7 @@
 		const today = getLondonDate();
 		const dayOfWeek = today.getDay(); // 0=Sun
 		const offset = dayOfWeek === 0 ? -6 : 1 - dayOfWeek;
-		const monday = new SvelteDate(today);
+		const monday = new Date(today);
 		monday.setDate(today.getDate() + offset);
 		return fmtDate(monday);
 	}

frontend/src/lib/components/payments/TipPayment.svelte

@@ -2,9 +2,9 @@
 	import { goto } from '$app/navigation';
 	import { toast } from 'svelte-sonner';
 	import { extractErrorMessage } from '$lib/utils/toast-safe';
-	import { SvelteDate } from 'svelte/reactivity';
 	import { authStore } from '$lib/stores/auth.svelte';
 	import { apiFetch } from '$lib/utils/api';
+	import { parseWallClockDate } from '$lib/utils/timeSlots';
 	import CardSelection from '$lib/components/payments/CardSelection.svelte';
 	import { savedCardsStore, type SavedCard } from '$lib/stores/savedCards.svelte';
 	import { Button } from '$lib/components/ui/button';
@@ -110,7 +110,7 @@
 	});
 
 	function formatDate(dateStr: string): string {
-		const date = new SvelteDate(dateStr);
+		const date = parseWallClockDate(dateStr);
 		return date.toLocaleDateString('en-GB', {
 			weekday: 'long',
 			day: 'numeric',
@@ -127,7 +127,7 @@
 		services: BookingService[],
 		fallbackDuration: number
 	): string {
-		const start = new SvelteDate(startStr);
+		const start = parseWallClockDate(startStr);
 		const totalMinutes =
 			services?.reduce(
 				(sum, s) => sum + (s.override_duration_minutes ?? s.duration_minutes ?? 0),
@@ -135,7 +135,7 @@
 			) ??
 			fallbackDuration ??
 			0;
-		const end = new SvelteDate(start.getTime() + totalMinutes * 60000);
+		const end = new Date(start.getTime() + totalMinutes * 60000);
 
 		const formatOpt: Intl.DateTimeFormatOptions = {
 			hour: 'numeric',

frontend/src/lib/components/today/CurrentAppointment.svelte

@@ -1,10 +1,10 @@
 <script lang="ts">
 	import { apiFetch } from '$lib/utils/api';
 	import { ensureBusinessInfo, getBusinessInfo } from '$lib/stores/businessInfo.svelte';
-	import { SvelteDate } from 'svelte/reactivity';
 	import { toast } from 'svelte-sonner';
 	import { formatDuration } from '$lib/utils/format';
 	import { formatUserName } from '$lib/utils/nameDisplay';
+	import { parseWallClockDate } from '$lib/utils/timeSlots';
 	import * as Card from '$lib/components/ui/card';
 	import { Button } from '$lib/components/ui/button';
 	import { Badge } from '$lib/components/ui/badge';
@@ -106,19 +106,19 @@
 	const minutesUntilClosing = $derived.by(() => {
 		if (!closingTime) return 0;
 		const [ch, cm] = closingTime.split(':').map(Number);
-		const now = new SvelteDate();
-		const closing = new SvelteDate(now.getFullYear(), now.getMonth(), now.getDate(), ch, cm);
+		const now = new Date();
+		const closing = new Date(now.getFullYear(), now.getMonth(), now.getDate(), ch, cm);
 		return Math.max(0, Math.floor((closing.getTime() - now.getTime()) / 60000));
 	});
 
 	function calculateTimes() {
-		const now = new SvelteDate();
+		const now = new Date();
 
 		if (currentAppointment) {
 			isInProgress = currentAppointment.status === 'in_progress';
-			const startTime = new SvelteDate(currentAppointment.start_time);
+			const startTime = parseWallClockDate(currentAppointment.start_time);
 
-			const endTime = new SvelteDate(
+			const endTime = new Date(
 				startTime.getTime() + currentAppointment.duration_minutes * 60 * 1000
 			);
 
@@ -137,15 +137,15 @@
 
 			let rawFreeMinutes = 0;
 			if (nextAppointment) {
-				const nextStart = new SvelteDate(nextAppointment.start_time);
+				const nextStart = parseWallClockDate(nextAppointment.start_time);
 				const gapMs = nextStart.getTime() - endTime.getTime();
 				rawFreeMinutes = Math.max(0, Math.floor(gapMs / 60000));
 			}
 
 			if (closingTime) {
 				const [ch, cm] = closingTime.split(':').map(Number);
-				const today = new SvelteDate();
-				const closing = new SvelteDate(
+				const today = new Date();
+				const closing = new Date(
 					today.getFullYear(),
 					today.getMonth(),
 					today.getDate(),
@@ -325,14 +325,14 @@
 					</Card.Title>
 					{#if activeAppointment}
 						<Card.Description class="text-base">
-							{new SvelteDate(activeAppointment.start_time).toLocaleTimeString('en-US', {
+							{parseWallClockDate(activeAppointment.start_time).toLocaleTimeString('en-US', {
 								hour: 'numeric',
 								minute: '2-digit',
 								hour12: true
 							})}
 							-
-							{new SvelteDate(
-								new SvelteDate(activeAppointment.start_time).getTime() +
+							{new Date(
+								parseWallClockDate(activeAppointment.start_time).getTime() +
 									activeAppointment.duration_minutes * 60 * 1000
 							).toLocaleTimeString('en-US', {
 								hour: 'numeric',
@@ -439,13 +439,13 @@
 
 				{#if summary.summary_scope === 'week'}
 					<div class="text-xs text-gray-500">
-						Summary: {new SvelteDate(summary.summary_start_date).toLocaleDateString('en-US', {
+						Summary: {parseWallClockDate(summary.summary_start_date).toLocaleDateString('en-US', {
 							weekday: 'short',
 							month: 'short',
 							day: 'numeric'
 						})}
 						&ndash;
-						{new SvelteDate(summary.summary_end_date).toLocaleDateString('en-US', {
+						{parseWallClockDate(summary.summary_end_date).toLocaleDateString('en-US', {
 							weekday: 'short',
 							month: 'short',
 							day: 'numeric'
@@ -552,7 +552,7 @@
 					<div>
 						<h4 class="mb-2 text-sm font-semibold text-gray-700">
 							New bookings made since{summary.summary_scope === 'week'
-								? ` opening ${new SvelteDate(summary.summary_start_date).toLocaleDateString('en-US', { weekday: 'long' })}`
+								? ` opening ${parseWallClockDate(summary.summary_start_date).toLocaleDateString('en-US', { weekday: 'long' })}`
 								: ' closing yesterday'}
 						</h4>
 						<div class="flex flex-wrap gap-2">
@@ -573,13 +573,13 @@
 						<div>
 							<h4 class="text-sm font-semibold text-gray-700">This week so far</h4>
 							<div class="text-xs text-gray-500">
-								{new SvelteDate(weekSummary.summary_start_date).toLocaleDateString('en-US', {
+								{parseWallClockDate(weekSummary.summary_start_date).toLocaleDateString('en-US', {
 									weekday: 'short',
 									month: 'short',
 									day: 'numeric'
 								})}
 								&ndash;
-								{new SvelteDate(weekSummary.summary_end_date).toLocaleDateString('en-US', {
+								{parseWallClockDate(weekSummary.summary_end_date).toLocaleDateString('en-US', {
 									weekday: 'short',
 									month: 'short',
 									day: 'numeric'

frontend/src/lib/components/today/PendingApprovals.svelte

@@ -1,6 +1,5 @@
 <script lang="ts">
 	import { apiFetch } from '$lib/utils/api';
-	import { SvelteDate } from 'svelte/reactivity';
 	import { toast } from 'svelte-sonner';
 	import * as Card from '$lib/components/ui/card';
 	import { Button } from '$lib/components/ui/button';
@@ -10,6 +9,7 @@
 	import EditRequestModal from '$lib/components/admin/EditRequestModal.svelte';
 	import { range } from '$lib/utils/format';
 	import { formatUserName } from '$lib/utils/nameDisplay';
+	import { parseWallClockDate } from '$lib/utils/timeSlots';
 
 	interface Props {
 		openBookingModal?: (bookingId: string) => void;
@@ -105,7 +105,7 @@
 
 	// Helper function to format date nicely
 	function formatDateTime(dateTimeString: string): string {
-		const date = new SvelteDate(dateTimeString);
+		const date = parseWallClockDate(dateTimeString);
 		const dateStr = date.toLocaleDateString('en-US', {
 			weekday: 'long',
 			day: 'numeric',
@@ -120,8 +120,8 @@
 	}
 
 	function formatRelativeTime(iso: string): string {
-		const d = new SvelteDate(iso);
-		const now = new SvelteDate();
+		const d = parseWallClockDate(iso);
+		const now = new Date();
 		const diffMs = now.getTime() - d.getTime();
 		const diffMin = Math.floor(diffMs / 60000);
 
@@ -138,7 +138,7 @@
 		const servicesChanged = areEditServicesChanged(er);
 
 		if (timeChanged) {
-			const d = new SvelteDate(er.proposed.start_time!);
+			const d = parseWallClockDate(er.proposed.start_time!);
 			const dateStr = d.toLocaleDateString('en-US', {
 				weekday: 'long',
 				day: 'numeric',
@@ -187,7 +187,8 @@
 				const data = await response.json();
 				const newApprovals = (data.approvals || []).sort(
 					(a: PendingApproval, b: PendingApproval) =>
-						new SvelteDate(a.created_at).getTime() - new SvelteDate(b.created_at).getTime()
+						parseWallClockDate(a.created_at).getTime() -
+						parseWallClockDate(b.created_at).getTime()
 				);
 				const newJson = JSON.stringify(newApprovals);
 				if (newJson !== prevApprovalsJson) {
@@ -218,7 +219,8 @@
 				const data = await response.json();
 				const newEditRequests = (data.edit_requests || []).sort(
 					(a: EditRequest, b: EditRequest) =>
-						new SvelteDate(a.requested_at).getTime() - new SvelteDate(b.requested_at).getTime()
+						parseWallClockDate(a.requested_at).getTime() -
+						parseWallClockDate(b.requested_at).getTime()
 				);
 				const newJson = JSON.stringify(newEditRequests);
 				if (newJson !== prevEditRequestsJson) {

frontend/src/lib/components/today/TodayCalendar.svelte

@@ -1,6 +1,5 @@
 <script lang="ts">
 	import { apiFetch } from '$lib/utils/api';
-	import { SvelteDate } from 'svelte/reactivity';
 	import { CalendarDate } from '@internationalized/date';
 	import { toast } from 'svelte-sonner';
 	import { extractErrorMessage, sanitizeText } from '$lib/utils/toast-safe';
@@ -22,7 +21,7 @@
 		timeToMinutes
 	} from '$lib/lunchProtection';
 	import { formatDuration, formatDateISO } from '$lib/utils/format';
-	import { formatLocalDateTime } from '$lib/utils/timeSlots';
+	import { formatLocalDateTime, parseWallClockDate } from '$lib/utils/timeSlots';
 
 	interface Props {
 		openBookingModal: (bookingId: string) => void;
@@ -83,8 +82,8 @@
 	};
 
 	function isPastAppointment(startTime: string, durationMinutes: number): boolean {
-		const start = new SvelteDate(startTime);
-		const end = new SvelteDate(start.getTime() + durationMinutes * 60_000);
+		const start = parseWallClockDate(startTime);
+		const end = new Date(start.getTime() + durationMinutes * 60_000);
 		return end.getTime() < Date.now();
 	}
 
@@ -118,7 +117,7 @@
 
 	const weekStartStr = $derived.by(() => {
 		const londonDateStr = new Date().toLocaleDateString('en-CA', { timeZone: 'Europe/London' });
-		const d = new SvelteDate(londonDateStr + 'T00:00:00Z');
+		const d = new Date(londonDateStr + 'T00:00:00Z');
 		const day = d.getDay();
 		const diff = day === 0 ? 6 : day - 1;
 		d.setDate(d.getDate() - diff);
@@ -126,7 +125,7 @@
 	});
 
 	const weekEndStr = $derived.by(() => {
-		const d = new SvelteDate(weekStartStr + 'T00:00:00Z');
+		const d = new Date(weekStartStr + 'T00:00:00Z');
 		d.setDate(d.getDate() + 6);
 		return formatDateISO(d);
 	});
@@ -286,7 +285,7 @@
 		const items: TimelineItem[] = [];
 
 		for (const apt of appointments) {
-			const start = new SvelteDate(apt.start_time);
+			const start = parseWallClockDate(apt.start_time);
 			const startM = start.getHours() * 60 + start.getMinutes();
 			items.push({
 				id: `apt-${apt.id}`,
@@ -298,7 +297,7 @@
 		}
 
 		for (const b of blockers) {
-			const start = new SvelteDate(b.start_time);
+			const start = parseWallClockDate(b.start_time);
 			const startM = start.getHours() * 60 + start.getMinutes();
 			items.push({
 				id: `blk-${b.id}`,
@@ -440,8 +439,8 @@
 			hasOverlap = false;
 			return;
 		}
-		const blockerStart = new SvelteDate(startIso);
-		const blockerEnd = new SvelteDate(endIso);
+		const blockerStart = new Date(startIso);
+		const blockerEnd = new Date(endIso);
 		if (blockerEnd.getTime() <= blockerStart.getTime()) {
 			overlappingBookings = [];
 			hasOverlap = false;
@@ -459,8 +458,8 @@
 				const data = await response.json();
 				const allBookings: OverlappingBooking[] = data.bookings || [];
 				const filtered = allBookings.filter((b) => {
-					const bStart = new SvelteDate(b.start_time);
-					const bEnd = new SvelteDate(bStart.getTime() + b.duration_minutes * 60000);
+					const bStart = parseWallClockDate(b.start_time);
+					const bEnd = new Date(bStart.getTime() + b.duration_minutes * 60000);
 					return bStart < blockerEnd && bEnd > blockerStart;
 				});
 				overlappingBookings = filtered;
@@ -627,7 +626,7 @@
 	}
 
 	function formatTime(dateString: string): string {
-		const date = new SvelteDate(dateString);
+		const date = parseWallClockDate(dateString);
 		return date.toLocaleTimeString('en-US', {
 			hour: 'numeric',
 			minute: '2-digit',
@@ -1011,7 +1010,7 @@
 										)}
 									</div>
 									<div class="text-xs text-gray-500">
-										{new SvelteDate(booking.start_time).toLocaleTimeString('en-GB', {
+										{parseWallClockDate(booking.start_time).toLocaleTimeString('en-GB', {
 											hour: 'numeric',
 											minute: '2-digit',
 											hour12: true

frontend/src/lib/components/today/TodayStats.svelte

@@ -1,5 +1,4 @@
 <script lang="ts">
-	import { SvelteDate } from 'svelte/reactivity';
 	import { apiFetch } from '$lib/utils/api';
 	import { Skeleton } from '$lib/components/ui/skeleton';
 	import * as Card from '$lib/components/ui/card';
@@ -51,11 +50,11 @@
 
 	async function findLastWorkingDayClose(): Promise<{ cutoff: string; spansClosed: boolean }> {
 		const londonDateStr = new Date().toLocaleDateString('en-CA', { timeZone: 'Europe/London' });
-		const now = new SvelteDate(londonDateStr + 'T00:00:00Z');
+		const now = new Date(londonDateStr + 'T00:00:00Z');
 		let spansClosed = false;
 
 		for (let i = 1; i <= 14; i++) {
-			const d = new SvelteDate(now);
+			const d = new Date(now);
 			d.setDate(d.getDate() - i);
 			const dateStr = `${d.getFullYear()}-${String(d.getMonth() + 1).padStart(2, '0')}-${String(d.getDate()).padStart(2, '0')}`;
 
@@ -72,7 +71,7 @@
 				if (day?.isOpen) {
 					const closeTime = day.endTime;
 					const [h, m] = closeTime.split(':').map(Number);
-					const closeDate = new SvelteDate(d);
+					const closeDate = new Date(d);
 					closeDate.setHours(h, m, 0, 0);
 					return { cutoff: formatLocalDateTime(closeDate), spansClosed };
 				} else {
@@ -81,7 +80,7 @@
 			}
 		}
 
-		const fallback = new SvelteDate(now);
+		const fallback = new Date(now);
 		fallback.setDate(fallback.getDate() - 1);
 		fallback.setHours(17, 0, 0, 0);
 		return { cutoff: formatLocalDateTime(fallback), spansClosed };
@@ -144,7 +143,7 @@
 			}
 
 			const { cutoff, spansClosed } = await findLastWorkingDayClose();
-			const nowISO = formatLocalDateTime(new SvelteDate());
+			const nowISO = formatLocalDateTime(new Date());
 			let bookingsMade = 0;
 			try {
 				const bmRes = await apiFetch(