Set Up Calendar starting from a specific day in a week
1. To set up your calendar view so it starts from another day instead of Monday (the default setting), go to Tools and then click on "General Settings".
2. A “General Settings” window opens. In the left panel click on Local Calendar (the sub item of the '"Systems"_' section).
3. In the right panel, change the Localization day to something other than Monday- in our case Sunday. This way the calendar view in the Calendar Module starts on Sunday.
4. Then click on "_OK_".