Here’s how to do it:
- Open Microsoft Project and go to the 'Project' tab located in the top ribbon.
- Click 'Change Working Time'.
- In the 'For calendar' dropdown, select 'Standard'.
- Click the 'Exceptions' tab below the calendar.
- Enter the name, start and finish dates.
- After adding the specifics, click 'Details'.
- Set the working times for your expectations.
- Click 'OK' to save the added holidays.



