Tuesday, May 26, 2026
1 change · saas-18.4
Resolved issues and error corrections
This update resolves a bug where the Gantt view incorrectly displayed working hours for flexible employees during public holidays. The fix converts all time zone calculations to UTC, ensuring accurate representation of unavailable hours and preventing employees from being incorrectly scheduled to work during holiday periods. This improves the accuracy of employee scheduling and time tracking.
Original PR description
[FIX] hr_attendance_gantt: fix gantt view with public holidays Bug reproduction: 1 - Select flex schedule employee (or change its schedule to 40h flex one) and make its contract before 01/01/2026 2 -…
[FIX] hr_attendance_gantt: fix gantt view with public holidays
Bug reproduction:
1 - Select flex schedule employee (or change its schedule to 40h flex one) and make its contract before 01/01/2026
2 - Create a new public holiday on 01/01/2026 (from 00.00 to 23.59 or 23.55 (depends on version, it does not matter))
3 - in attendance app the cell from 00.00 to 01.00 seems white for that day and for selected employee (this cell seems like not holiday and employee can work)
Bug cause:
1 - After a long traceback, _gantt_unavailability in hr_attendance_gantt/HrAttendance, if an employee is flexible then unavailable_intervals is calculated with the Brussel time zone
2 - All other unavailable intervals are converted to the UTC in the function of _gantt_unavailability except in the final lines of the function.
3 - When the employee is flexible and since the conversion is not done in the final lines, it remains 1 hour more (UTC+1), it is from 1 am to 1 am of next day instead of 0 am to 23.59.
Bug solution:
1 - I converted the timezone to UTC to solve the problem.
task - 6067070
Forward-Port-Of: odoo/enterprise#112493