I am having a requirement in which i have to enable on 2-3 hours in a day. So is there any way to do it???
In the scheduler, you can choose to display only selected fragments of a day using IncludeCell event: http://doc.daypilot.org/scheduler/hiding-time-columns/
It's also possible to create the timeline manually (and include only selected hours): http://doc.daypilot.org/scheduler/timeline/
In the calendar control, you can set the visible hours using DayBeginsHour and DayEndsHour (this will limit the horizontal axis to the specified hour range):
http://doc.daypilot.org/calendar/overnight-scheduling/