In order to achieve the desired you could create a custom MonthViewDefinition. By overriding the GetVisibleRangeStart
method you could set the start week of the MonthView. Please, check the following article from out help documentation that provides a more detailed information about how to configure the VisibleRange:
We hope this will help you.
Check out the Telerik Platform - the only platform that combines a rich set of UI tools with powerful cloud services to develop web, hybrid and native mobile apps.