You can use the First Day of Week setting in the Search pane of the Timesheets view to select the day from which the week starts. 

Note The Week filter is automatically changed based on selected first day of the week.  

If you click a particular employee name, you will see that employee timesheet also starts from the first day of the week that you have selected. 

The same way you can select the first day of the week on the Weekly Production Record page.

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