This update streamlines how Odoo handles working calendars, employee availability, time off, payroll, attendance, and manufacturing work centers. It makes scheduling calculations more reliable across time zones and reduces duplicated logic, helping businesses get more accurate planning and HR-related results.

Task: https://www.odoo.com/web#id=31320&view_type=form&model=project.task&menu_id=5200

This update aligns several HR, manufacturing, and project forecasting areas with recent internal naming and scheduling changes. It helps keep related business workflows compatible and maintainable without introducing visible new features for users.

See https://github.com/odoo/odoo/pull/15164 .