Account admins can create new custom work schedules. On Enterprise accounts, this right can be revoked.
If some users in your account work on a different schedule from other team members, you can create a custom schedule and assign it to them.
Click your profile image in the workspace’s upper-right corner.
Select Settings from the dropdown.
Click Work Schedules in the left panel.
Click + Create new from the left side of the view.
Enter a title for the work schedule.
Press Enter on your keyboard to save the new schedule.
Now you can customize the new schedule: