Edit a Project Workweek to make sure the default schedule matches the project team's workdays.
How To Adjust the Work Week:
Go to Settings on the left-hand side.
Open Project Work Schedule.
Select and Deselect the boxes on the days of the week to identify as workdays vs. nonworkdays.
How to add a Holiday:
Go to Settings on the left-hand side.
Open Project Work Schedule.
Click Add Non-work Day.
Enter a name and date of a non-workday and click save.
Note: Only Admins can edit the Work Schedule. Edit the Custom Role Work Schedule if specific roles work different schedules than others.