- 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/appointment.ts with getStatusDisplay()
- Supports context-aware text (isOwnView parameter)
- Updated both appointments pages to use shared utility
- 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
