- Update all date/time formatting functions to use 'es-ES' locale instead of 'en-US' or 'de-DE'
- Update utility functions in utils/date.ts and utils/exchange.ts
- Update all component files that use date formatting
- Update e2e test helper to match new Spanish date format
- All formatting now uses Spanish locale regardless of selected language as per PR requirements
- Changed formatTime back to use toLocaleTimeString (local time)
- Changed formatDateTime back to use toLocaleString (local time)
- App now displays all times in user's local timezone
- Backend still stores times in UTC, frontend converts for display
- Changed formatDateTime to use UTC methods instead of toLocaleString
- Prevents timezone conversion when displaying appointment times
- Now booking at 11:45 shows as 11:45 in appointments page, not 12:45
- Consistent with formatTime which already uses UTC
- Manual formatting to match previous format: 'Mon, Jan 15, 11:45'
- Changed formatTime() to use UTC methods instead of toLocaleTimeString()
- Prevents timezone conversion when displaying booking slots
- Now admin sets 9-17 and user sees 9-17, regardless of timezone
- Fixes 1-hour offset issue when user timezone differs from UTC
- Created formatTimeString() utility to properly parse time strings
- Replaced all .slice(0, 5) calls with proper time formatting
- Handles both 'HH:MM:SS' and 'HH:MM' formats safely
- More robust than string slicing
- Created getDateRange() function in utils/date.ts
- Replaced getBookableDates() and getDateRange() duplicates
- Both booking and availability pages now use shared function
- Function accepts minAdvanceDays and maxAdvanceDays as parameters
- Created frontend/app/utils/date.ts with formatDate, formatTime, formatDateTime, formatDisplayDate
- Created frontend/e2e/helpers/date.ts with formatDateLocal, getTomorrowDateStr
- Updated all frontend pages and e2e tests to use shared utilities
- Removed duplicate date formatting code from 6 files
