At the moment the TKCalendar component does not support day view.
There is an issue in our feedback portal regarding the day view, here is link
to it so you can be up to date with it's status.
The current status of the feature request is approved, and we are going to consider including it in one of our upcoming releases.
If you have any other questions or concerns, do not hesitate to contact us.
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?
Telerik Feedback Portal
and vote to affect the priority of the items