In the Calendar, it's only possible to use CellDuration values that divide an hour without any remainder. I.e. setting CellDuration="45" wouldn't work.

In the Scheduler, it's possible to use any positive integer value as CellDuration.

It's also possible to hide individual columns in the Scheduler using BeforeTimeHeaderRender (set e.Visible = false) and ShowNonBusiness=false. See also:

http://www.daypilot.org/scheduler-hiding-non-business-hours.html

No you did not get the question right. I don't want to set the cell duration to 45 minutes. I want to set the cell duration as 5 mins. So between any 2 hours I will see 12 lines each line indication 5 minutes. Is there a way to display labels for 15, 30 and 45 minutes between any 2 hours.
See below
8 am

15-

30-

45-

9 am

Perfect thanks. Can this be a standard feature like the others?

I'm adding it to the wishlist.