I have attached two pictures to demonstrate the issue.

The grid lines represent 1 minute intervals.

The first image shows the appointment being sized or dragged and it displays the start time and end time (2 to 3 minutes)

The second image shows the result when the appointment appears on the timeline.
Notice it is not aligned with the grid lines (should be between tick marks 2 and 3), I am not sure how to solve this offset problem..

Any help would be appreciated.

Hello,

 This problem is not reproducible at our side. I see from the attached image that you've made some customization on RadScheduleView. To give you with more detailed instructions I suggest you send us sample running project to illustrate the issue so we can test it locally.

Regards,
Rosi
Telerik