Setting the day your week starts
This will be the first day that appears on the rota. To change the account default for all employees, go to the 'Account Settings' page and navigate to the 'Settings' tab, then pick from the drop down where it says 'Week Starts'.
There is also a personal 'Week Starts' setting that only applies to your rota, and does not affect anyone else in the account. To change your personal setting, go to the 'Account Settings' page and navigate to the 'Your Details' tab.