feat(scheduling): add out_of_hours override and fix timezone handling

Support out_of_hours query param in GetWorkingHours and GetAvailableHours (admin-only, returns 06:00-22:00 for all days). Replace ukLocation with time.Local for date boundaries. Add OptionalAuth middleware to scheduling routes for admin role detection. Add tests for admin/non-admin/no-auth scenarios, booking respect, and exceptional hours interaction.

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

backend/handlers/scheduling/default-hours.go

@@ -137,21 +137,28 @@ func GetWorkingHours(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	ukLocation, _ := time.LoadLocation("Europe/London")
-	start, err := time.ParseInLocation("2006-01-02", startStr, ukLocation)
+	start, err := time.Parse("2006-01-02", startStr)
 	if err != nil {
 		http.Error(w, "invalid start date", http.StatusBadRequest)
 		return
 	}
-	end, err := time.ParseInLocation("2006-01-02", endStr, ukLocation)
+	end, err := time.Parse("2006-01-02", endStr)
 	if err != nil {
 		http.Error(w, "invalid end date", http.StatusBadRequest)
 		return
 	}
 
+	// Parse out_of_hours toggle (admin-only extended hours)
+	outOfHours := r.URL.Query().Get("out_of_hours") == "true"
+	isAdmin := false
+	if userRole, ok := r.Context().Value(mw.UserRoleKey).(string); ok {
+		isAdmin = userRole == "admin"
+	}
+	useOutOfHours := outOfHours && isAdmin
+
 	// Set to local start/end of day
-	start = time.Date(start.Year(), start.Month(), start.Day(), 0, 0, 0, 0, ukLocation)
-	end = time.Date(end.Year(), end.Month(), end.Day(), 23, 59, 59, 999999999, ukLocation)
+	start = time.Date(start.Year(), start.Month(), start.Day(), 0, 0, 0, 0, time.Local)
+	end = time.Date(end.Year(), end.Month(), end.Day(), 23, 59, 59, 999999999, time.Local)
 
 	// Load default hours
 	defaultMap := map[int]DefaultHours{}
@@ -190,7 +197,7 @@ func GetWorkingHours(w http.ResponseWriter, r *http.Request) {
 	for appRows.Next() {
 		var a appEntry
 		if err := appRows.Scan(&a.GroupID, &a.WeekStart); err == nil {
-			a.WeekStart = time.Date(a.WeekStart.Year(), a.WeekStart.Month(), a.WeekStart.Day(), 0, 0, 0, 0, ukLocation)
+			a.WeekStart = time.Date(a.WeekStart.Year(), a.WeekStart.Month(), a.WeekStart.Day(), 0, 0, 0, 0, time.Local)
 			apps = append(apps, a)
 			groupIDs = append(groupIDs, a.GroupID)
 		}
@@ -229,7 +236,7 @@ func GetWorkingHours(w http.ResponseWriter, r *http.Request) {
 			daysSinceMonday = 6 // Sunday
 		}
 		weekStart := d.AddDate(0, 0, -daysSinceMonday)
-		weekStart = time.Date(weekStart.Year(), weekStart.Month(), weekStart.Day(), 0, 0, 0, 0, ukLocation)
+		weekStart = time.Date(weekStart.Year(), weekStart.Month(), weekStart.Day(), 0, 0, 0, 0, time.Local)
 
 		var applied *ExceptionalHours
 		weekStartStr := weekStart.Format("2006-01-02")
@@ -264,6 +271,14 @@ func GetWorkingHours(w http.ResponseWriter, r *http.Request) {
 			day.Source = "default"
 		}
 
+		// Out-of-hours override for admin
+		if useOutOfHours {
+			day.IsOpen = true
+			day.StartTime = "06:00"
+			day.EndTime = "22:00"
+			day.Source = "default"
+		}
+
 		results = append(results, day)
 	}
 
@@ -325,14 +340,15 @@ func GetAvailableHours(w http.ResponseWriter, r *http.Request) {
 		http.Error(w, "start and end query params required", http.StatusBadRequest)
 		return
 	}
+	start, _ := time.Parse("2006-01-02", startStr)
+	end, _ := time.Parse("2006-01-02", endStr)
 
-	ukLocation, _ := time.LoadLocation("Europe/London")
-	start, _ := time.ParseInLocation("2006-01-02", startStr, ukLocation)
-	end, _ := time.ParseInLocation("2006-01-02", endStr, ukLocation)
+	// Parse out_of_hours toggle (admin-only extended hours)
+	outOfHours := r.URL.Query().Get("out_of_hours") == "true"
 
 	// set start/end of day
-	start = time.Date(start.Year(), start.Month(), start.Day(), 0, 0, 0, 0, ukLocation)
-	end = time.Date(end.Year(), end.Month(), end.Day(), 23, 59, 59, 999999999, ukLocation)
+	start = time.Date(start.Year(), start.Month(), start.Day(), 0, 0, 0, 0, time.Local)
+	end = time.Date(end.Year(), end.Month(), end.Day(), 23, 59, 59, 999999999, time.Local)
 
 	// Clean up old reservations (older than 1 hour)
 	if err := CleanupOldReservations(r.Context()); err != nil {
@@ -413,7 +429,7 @@ func GetAvailableHours(w http.ResponseWriter, r *http.Request) {
 	for appRows.Next() {
 		var a appEntry
 		if err := appRows.Scan(&a.GroupID, &a.WeekStart); err == nil {
-			a.WeekStart = time.Date(a.WeekStart.Year(), a.WeekStart.Month(), a.WeekStart.Day(), 0, 0, 0, 0, ukLocation)
+			a.WeekStart = time.Date(a.WeekStart.Year(), a.WeekStart.Month(), a.WeekStart.Day(), 0, 0, 0, 0, time.Local)
 			apps = append(apps, a)
 			groupIDs = append(groupIDs, a.GroupID)
 		}
@@ -456,7 +472,6 @@ func GetAvailableHours(w http.ResponseWriter, r *http.Request) {
 		var t time.Time
 		var dur int
 		if err := bookingRows.Scan(&t, &dur); err == nil {
-			t = t.In(ukLocation)
 			dateStr := t.Format("2006-01-02")
 			endTime := t.Add(time.Duration(dur) * time.Minute)
 			bookings[dateStr] = append(bookings[dateStr], TimeSlot{
@@ -513,7 +528,7 @@ func GetAvailableHours(w http.ResponseWriter, r *http.Request) {
 			daysSinceMonday = 6 // Sunday
 		}
 		weekStart := d.AddDate(0, 0, -daysSinceMonday)
-		weekStart = time.Date(weekStart.Year(), weekStart.Month(), weekStart.Day(), 0, 0, 0, 0, ukLocation)
+		weekStart = time.Date(weekStart.Year(), weekStart.Month(), weekStart.Day(), 0, 0, 0, 0, time.Local)
 
 		var applied *ExceptionalHours
 		weekStartStr := weekStart.Format("2006-01-02")
@@ -550,6 +565,14 @@ func GetAvailableHours(w http.ResponseWriter, r *http.Request) {
 			day.Source = "default"
 		}
 
+		// Out-of-hours override for admin
+		if outOfHours && isAdmin {
+			baseStart = "06:00"
+			baseEnd = "22:00"
+			isOpen = true
+			day.Source = "out_of_hours"
+		}
+
 		day.IsOpen = isOpen
 		if isOpen {
 			slots := []TimeSlot{{StartTime: baseStart, EndTime: baseEnd}}

backend/handlers/scheduling/scheduling_test.go

@@ -23,6 +23,7 @@ import (
 	"net/http"
 	"net/http/httptest"
 	"strconv"
+	"strings"
 	"testing"
 	"time"
 
@@ -549,7 +550,397 @@ func TestScheduling_GetAvailableHours(t *testing.T) {
 	}
 }
 
-// --- Tests for UpdateExceptionalApplications ---
+// TestScheduling_GetWorkingHours_OutOfHours_Admin verifies that when an admin
+// calls GetWorkingHours with out_of_hours=true, ALL days return isOpen=true
+// with startTime=06:00 and endTime=22:00 (including normally-closed days).
+func TestScheduling_GetWorkingHours_OutOfHours_Admin(t *testing.T) {
+	t.Parallel()
+	ctx, _ := resetTestData(t)
+
+	handler := http.HandlerFunc(GetWorkingHours)
+	req := httptest.NewRequest("GET", "/api/scheduling/working-hours?start=2026-02-16&end=2026-02-22&out_of_hours=true", nil)
+	req = req.WithContext(ctx)
+	// Set admin role in context (simulates OptionalAuth setting the role)
+	req = req.WithContext(context.WithValue(req.Context(), mw.UserRoleKey, "admin"))
+	w := httptest.NewRecorder()
+	handler.ServeHTTP(w, req)
+
+	if w.Code != http.StatusOK {
+		t.Fatalf("expected status 200, got %d. body: %s", w.Code, w.Body.String())
+	}
+
+	var response []DayWorkingHours
+	if err := json.Unmarshal(w.Body.Bytes(), &response); err != nil {
+		t.Fatalf("failed to unmarshal response: %v", err)
+	}
+
+	if len(response) == 0 {
+		t.Fatal("expected working hours in response")
+	}
+
+	for _, day := range response {
+		if !day.IsOpen {
+			t.Errorf("expected all days to be open with out_of_hours, got isOpen=false for %s", day.Date)
+		}
+		if day.StartTime != "06:00" {
+			t.Errorf("expected startTime=06:00 for %s, got %s", day.Date, day.StartTime)
+		}
+		if day.EndTime != "22:00" {
+			t.Errorf("expected endTime=22:00 for %s, got %s", day.Date, day.EndTime)
+		}
+	}
+}
+
+// TestScheduling_GetWorkingHours_OutOfHours_NonAdmin verifies that when a
+// non-admin calls GetWorkingHours with out_of_hours=true, the flag is silently
+// ignored and normal hours are returned.
+func TestScheduling_GetWorkingHours_OutOfHours_NonAdmin(t *testing.T) {
+	t.Parallel()
+	ctx, _ := resetTestData(t)
+
+	handler := http.HandlerFunc(GetWorkingHours)
+	req := httptest.NewRequest("GET", "/api/scheduling/working-hours?start=2026-02-16&end=2026-02-22&out_of_hours=true", nil)
+	req = req.WithContext(ctx)
+	// Set non-admin role
+	req = req.WithContext(context.WithValue(req.Context(), mw.UserRoleKey, "user"))
+	w := httptest.NewRecorder()
+	handler.ServeHTTP(w, req)
+
+	if w.Code != http.StatusOK {
+		t.Fatalf("expected status 200, got %d. body: %s", w.Code, w.Body.String())
+	}
+
+	var response []DayWorkingHours
+	if err := json.Unmarshal(w.Body.Bytes(), &response); err != nil {
+		t.Fatalf("failed to unmarshal response: %v", err)
+	}
+
+	if len(response) == 0 {
+		t.Fatal("expected working hours in response")
+	}
+
+	for _, day := range response {
+		if day.StartTime == "06:00" {
+			t.Errorf("non-admin should not get out_of_hours hours, got startTime=06:00 for %s", day.Date)
+			break
+		}
+	}
+}
+
+// TestScheduling_GetWorkingHours_OutOfHours_NoAuth verifies that when no auth
+// context is present (unauthenticated user), out_of_hours=true is silently ignored.
+func TestScheduling_GetWorkingHours_OutOfHours_NoAuth(t *testing.T) {
+	t.Parallel()
+	_, _ = resetTestData(t)
+
+	handler := http.HandlerFunc(GetWorkingHours)
+	req := httptest.NewRequest("GET", "/api/scheduling/working-hours?start=2026-02-16&end=2026-02-22&out_of_hours=true", nil)
+	w := httptest.NewRecorder()
+	handler.ServeHTTP(w, req)
+
+	if w.Code != http.StatusOK {
+		t.Fatalf("expected status 200, got %d. body: %s", w.Code, w.Body.String())
+	}
+
+	var response []DayWorkingHours
+	if err := json.Unmarshal(w.Body.Bytes(), &response); err != nil {
+		t.Fatalf("failed to unmarshal response: %v", err)
+	}
+
+	for _, day := range response {
+		if day.StartTime == "06:00" {
+			t.Errorf("unauthenticated user should not get out_of_hours hours, got startTime=06:00 for %s", day.Date)
+			break
+		}
+	}
+}
+
+// TestScheduling_GetAvailableHours_OutOfHours_Admin verifies that when an
+// admin calls GetAvailableHours with out_of_hours=true, slots are generated
+// for ALL days (including normally-closed ones like weekends).
+func TestScheduling_GetAvailableHours_OutOfHours_Admin(t *testing.T) {
+	t.Parallel()
+	ctx, _ := resetTestData(t)
+
+	handler := http.HandlerFunc(GetAvailableHours)
+	req := httptest.NewRequest("GET", "/api/scheduling/available-hours?start=2026-02-16&end=2026-02-22&out_of_hours=true", nil)
+	req = req.WithContext(ctx)
+	req = req.WithContext(context.WithValue(req.Context(), mw.UserRoleKey, "admin"))
+	w := httptest.NewRecorder()
+	handler.ServeHTTP(w, req)
+
+	if w.Code != http.StatusOK {
+		t.Fatalf("expected status 200, got %d. body: %s", w.Code, w.Body.String())
+	}
+
+	var response []DayAvailableHours
+	if err := json.Unmarshal(w.Body.Bytes(), &response); err != nil {
+		t.Fatalf("failed to unmarshal response: %v", err)
+	}
+
+	if len(response) == 0 {
+		t.Fatal("expected available hours in response")
+	}
+
+	for _, day := range response {
+		if !day.IsOpen {
+			t.Errorf("expected all days isOpen=true with out_of_hours, got isOpen=false for %s", day.Date)
+		}
+		if len(day.Slots) == 0 {
+			t.Errorf("expected slots for all days with out_of_hours, got none for %s", day.Date)
+		}
+	}
+}
+
+// TestScheduling_GetAvailableHours_OutOfHours_NonAdmin verifies that when a
+// non-admin calls GetAvailableHours with out_of_hours=true, the flag is ignored
+// and normal availability is returned (closed days have no slots).
+func TestScheduling_GetAvailableHours_OutOfHours_NonAdmin(t *testing.T) {
+	t.Parallel()
+	ctx, _ := resetTestData(t)
+
+	handler := http.HandlerFunc(GetAvailableHours)
+	req := httptest.NewRequest("GET", "/api/scheduling/available-hours?start=2026-02-16&end=2026-02-22&out_of_hours=true", nil)
+	req = req.WithContext(ctx)
+	req = req.WithContext(context.WithValue(req.Context(), mw.UserRoleKey, "user"))
+	w := httptest.NewRecorder()
+	handler.ServeHTTP(w, req)
+
+	if w.Code != http.StatusOK {
+		t.Fatalf("expected status 200, got %d. body: %s", w.Code, w.Body.String())
+	}
+
+	var response []DayAvailableHours
+	if err := json.Unmarshal(w.Body.Bytes(), &response); err != nil {
+		t.Fatalf("failed to unmarshal response: %v", err)
+	}
+
+	for _, day := range response {
+		// Closed days should still be closed for non-admin even with out_of_hours flag
+		if !day.IsOpen && len(day.Slots) > 0 {
+			t.Errorf("non-admin should not get slots for closed day %s", day.Date)
+		}
+		// All source should be "default" not "out_of_hours"
+		if day.Source == "out_of_hours" {
+			t.Errorf("non-admin should not get source=out_of_hours for %s", day.Date)
+		}
+	}
+}
+
+// TestScheduling_GetAvailableHours_OutOfHours_RespectsBookings verifies that
+// out-of-hours mode still subtracts existing bookings from available slots.
+// Ensuring the available-hours response is the source of truth for slot data.
+func TestScheduling_GetAvailableHours_OutOfHours_RespectsBookings(t *testing.T) {
+	t.Parallel()
+	ctx, tx := resetTestData(t)
+
+	// Create a user + booking starting at 09:00 for 60 min on a weekday
+	var userID, serviceID string
+	err := tx.QueryRow(ctx, `
+		INSERT INTO users (n_first_name, n_last_name, email, phone, date_of_birth, password_hash, account_role, account_type)
+		VALUES ('Test', 'User', 'test@test.com', '+1234567890', '1990-01-01', 'hash', 'verified_email', 'email')
+		RETURNING id
+	`).Scan(&userID)
+	if err != nil {
+		t.Fatalf("failed to create user: %v", err)
+	}
+	err = tx.QueryRow(ctx, `
+		INSERT INTO services (name, price, duration_minutes)
+		VALUES ('Test Service', 10, 60)
+		RETURNING id
+	`).Scan(&serviceID)
+	if err != nil {
+		t.Fatalf("failed to create service: %v", err)
+	}
+	// Create a booking on Tuesday 2026-02-17 at 09:00, 60min (blocks 09:00-10:00)
+	bookingTime := time.Date(2026, 2, 17, 9, 0, 0, 0, time.Local)
+	_, err = tx.Exec(ctx, `
+		INSERT INTO bookings (user_id, start_time, status, created_at)
+		VALUES ($1, $2, 'confirmed', NOW())
+	`, userID, bookingTime)
+	if err != nil {
+		t.Fatalf("failed to create booking: %v", err)
+	}
+	// Add booking service so end_time trigger computes correctly
+	_, err = tx.Exec(ctx, `
+		INSERT INTO booking_services (booking_id, service_id)
+		VALUES ((SELECT id FROM bookings WHERE user_id = $1 AND start_time = $2), $3)
+	`, userID, bookingTime, serviceID)
+	if err != nil {
+		t.Fatalf("failed to link booking service: %v", err)
+	}
+
+	// Call GetAvailableHours with out_of_hours=true for a range including Tuesday
+	handler := http.HandlerFunc(GetAvailableHours)
+	req := httptest.NewRequest("GET", "/api/scheduling/available-hours?start=2026-02-16&end=2026-02-22&out_of_hours=true", nil)
+	req = req.WithContext(ctx)
+	req = req.WithContext(context.WithValue(req.Context(), mw.UserRoleKey, "admin"))
+	w := httptest.NewRecorder()
+	handler.ServeHTTP(w, req)
+
+	if w.Code != http.StatusOK {
+		t.Fatalf("expected status 200, got %d. body: %s", w.Code, w.Body.String())
+	}
+
+	var response []DayAvailableHours
+	if err := json.Unmarshal(w.Body.Bytes(), &response); err != nil {
+		t.Fatalf("failed to unmarshal response: %v", err)
+	}
+
+	// Find Tuesday 2026-02-17 and verify the 09:00-10:00 slot is excluded
+	var tuesday DayAvailableHours
+	for _, day := range response {
+		if day.Date == "2026-02-17" {
+			tuesday = day
+			break
+		}
+	}
+	if tuesday.Date == "" {
+		t.Fatal("expected Tuesday 2026-02-17 in response")
+	}
+	if !tuesday.IsOpen {
+		t.Fatal("expected Tuesday to be open with out_of_hours")
+	}
+
+	// Verify no slot starts between 09:00 and 10:00 (the booking blocks it)
+	for _, slot := range tuesday.Slots {
+		startMin := timeToMinutesForTest(slot.StartTime)
+		if startMin >= 540 && startMin < 600 { // 09:00-10:00 in minutes
+			t.Errorf("expected booking at 09:00 to block slots, but found slot at %s", slot.StartTime)
+		}
+	}
+
+	// Verify we still have slots outside the booking window (e.g. 06:00-09:00)
+	hasPreBookingSlot := false
+	for _, slot := range tuesday.Slots {
+		startMin := timeToMinutesForTest(slot.StartTime)
+		if startMin < 540 { // before 09:00
+			hasPreBookingSlot = true
+			break
+		}
+	}
+	if !hasPreBookingSlot {
+		t.Error("expected slots before 09:00 (pre-booking) with out_of_hours on Tuesday")
+	}
+}
+
+// TestScheduling_GetAvailableHours_OutOfHours_ExceptionalOpen verifies that
+// out-of-hours mode correctly reflects exceptional hours data - the available
+// slots come from available-hours API (which includes exceptional hours adjustments),
+// not just from the default 06:00-22:00 range.
+func TestScheduling_GetAvailableHours_OutOfHours_ExceptionalOpen(t *testing.T) {
+	t.Parallel()
+	ctx, tx := resetTestData(t)
+
+	today := time.Now()
+	weekday := int(today.Weekday())
+	if weekday == 0 {
+		weekday = 6
+	} else {
+		weekday -= 1
+	}
+
+	// Override working hours - today is closed by default
+	_, err := tx.Exec(ctx, `
+		INSERT INTO working_hours (weekday, start_time, end_time, is_open)
+		VALUES ($1, '09:00', '17:00', false)
+		ON CONFLICT (weekday) DO UPDATE SET start_time = '09:00', end_time = '17:00', is_open = false
+	`, weekday)
+	if err != nil {
+		t.Fatalf("failed to seed working hours: %v", err)
+	}
+
+	// Add exceptional open hours for today (09:00-13:00, open)
+	daysSinceMonday := int(today.Weekday()) - 1
+	if daysSinceMonday < 0 {
+		daysSinceMonday = 6
+	}
+	monday := today.AddDate(0, 0, -daysSinceMonday)
+	mondayStr := monday.Format("2006-01-02")
+
+	var groupID int
+	err = tx.QueryRow(ctx, `
+		INSERT INTO exceptional_working_hours_groups (name, description)
+		VALUES ('Test Holiday', 'Exceptional open day')
+		RETURNING id
+	`).Scan(&groupID)
+	if err != nil {
+		t.Fatalf("failed to create group: %v", err)
+	}
+	_, err = tx.Exec(ctx, `
+		INSERT INTO exceptional_working_hours (group_id, weekday, start_time, end_time, is_open)
+		VALUES ($1, $2, '09:00', '13:00', true)
+	`, groupID, weekday)
+	if err != nil {
+		t.Fatalf("failed to seed exceptional hours: %v", err)
+	}
+	_, err = tx.Exec(ctx, `
+		INSERT INTO exceptional_group_applications (group_id, week_start)
+		VALUES ($1, $2::date)
+	`, groupID, mondayStr)
+	if err != nil {
+		t.Fatalf("failed to seed application: %v", err)
+	}
+
+	// Call normal GetAvailableHours (no out_of_hours) - should return slots based on exceptional hours
+	handler := http.HandlerFunc(GetAvailableHours)
+	todayStr := today.Format("2006-01-02")
+	req := httptest.NewRequest("GET", "/api/scheduling/available-hours?start="+todayStr+"&end="+todayStr, nil)
+	req = req.WithContext(ctx)
+	w := httptest.NewRecorder()
+	handler.ServeHTTP(w, req)
+	if w.Code != http.StatusOK {
+		t.Fatalf("normal request failed: %d", w.Code)
+	}
+	var normalResponse []DayAvailableHours
+	json.Unmarshal(w.Body.Bytes(), &normalResponse)
+
+	// Call with out_of_hours=true - should still generate 06:00-22:00 range
+	req2 := httptest.NewRequest("GET", "/api/scheduling/available-hours?start="+todayStr+"&end="+todayStr+"&out_of_hours=true", nil)
+	req2 = req2.WithContext(ctx)
+	req2 = req2.WithContext(context.WithValue(req2.Context(), mw.UserRoleKey, "admin"))
+	w2 := httptest.NewRecorder()
+	handler.ServeHTTP(w2, req2)
+	if w2.Code != http.StatusOK {
+		t.Fatalf("out_of_hours request failed: %d", w2.Code)
+	}
+	var oohResponse []DayAvailableHours
+	json.Unmarshal(w2.Body.Bytes(), &oohResponse)
+
+	// Normal request should have 09:00-13:00 range (exceptional hours) or empty if closed
+	// Out-of-hours request should have 06:00-22:00 range
+	if len(oohResponse) > 0 {
+		day := oohResponse[0]
+		if !day.IsOpen {
+			t.Error("expected out_of_hours to make day open")
+		}
+		if len(day.Slots) == 0 {
+			t.Error("expected out_of_hours to generate slots")
+		}
+		// Verify we have pre-09:00 slots (6am-9am) which are only available in out_of_hours mode
+		hasEarlySlot := false
+		for _, slot := range day.Slots {
+			if timeToMinutesForTest(slot.StartTime) < 540 { // before 09:00
+				hasEarlySlot = true
+				break
+			}
+		}
+		if !hasEarlySlot {
+			t.Error("expected out_of_hours slots before 09:00 (pre-exceptional-hours)")
+		}
+	}
+}
+
+// Helper to convert time string to minutes for test assertions
+func timeToMinutesForTest(time string) int {
+	parts := strings.Split(time, ":")
+	if len(parts) < 2 {
+		return 0
+	}
+	h, _ := strconv.Atoi(parts[0])
+	m, _ := strconv.Atoi(parts[1])
+	return h*60 + m
+}
 
 // TestScheduling_UpdateExceptionalApplications_Admin verifies that an
 // admin can apply an exceptional hours group to specific weeks, activating

backend/main.go

@@ -226,6 +226,7 @@ func main() {
 		// Scheduling
 		r.Route("/scheduling", func(r chi.Router) {
 			r.Use(mw.RateLimit(120, time.Minute))
+			r.Use(mw.OptionalAuth)
 			r.Get("/default-hours", scheduling.GetDefaultHours)
 			r.Get("/exceptional-groups", scheduling.ListExceptionalGroups)
 			r.Get("/working-hours", scheduling.GetWorkingHours)