Thank you for your question.
You can modify the names of the weeks by setting the Culture
of the Calendar:
If you have further questions please let us know.
All the best,
the Telerik team
Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking
system and vote to affect the priority of the items.