All users on all account types can set the first day of their workweek from their Wrike profile, but only admins can alter the working days of the whole account.
Click your profile picture in the top right-hand corner of your Wrike workspace.
Select Settings from the drop-down.
Your Profile settings open by default 1.
Scroll down to Language & Region under Workspace Settings 2.
Click Week starts on and choose your preferred option in the drop-down 3.
Click Save changes when you're finished 4.