https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=37707 --- Comment #26 from Martin Renvoize (ashimema) <martin.renvoize@openfifth.co.uk> --- Created attachment 191355 --> https://bugs.koha-community.org/bugzilla3/attachment.cgi?id=191355&action=edit Bug 37707: Add Cypress tests for timezone handling in place_booking modal This patch adds comprehensive timezone tests to validate that the place_booking modal handles dates correctly regardless of browser timezone differences from the server. Test Coverage: 1. Date Index Creation Consistency - Validates bookings display on correct calendar dates - Tests the dayjs().format('YYYY-MM-DD') fix 2. Multi-Day Booking Span - Ensures 3-day bookings span exactly 3 days - Prevents UTC conversion from adding extra days 3. Date Comparison Consistency - Verifies conflict detection works across timezones - Tests normalized start-of-day comparisons 4. API Submission Round-Trip - Validates dates survive browser → API → database flow - Checks RFC3339 handling and timezone offset preservation 5. Cross-Month Boundary - Tests bookings spanning month boundaries - Validates no date shifts at month transitions These tests validate the timezone fixes in place_booking.js and ensure bookings work correctly for users in any timezone. Test plan: Run inside KTD container: docker exec --user kohadev-koha --workdir /kohadevbox/koha -i \ kohadev-koha-1 bash -c 'npx cypress run --spec \ "t/cypress/integration/Circulation/bookingsModalTimezone_spec.ts"' Expected result: All 5 tests should pass -- You are receiving this mail because: You are watching all bug changes.