Is there any property to specify non-working hours, as you have the NonworkingDays property and related?
The NonworkingHours property specifies the non-working hours in a day. The non-working hours are shown, if your chart displays hours or groups of hours in a day. The NonworkingDays property specifies the non-working days in a week. The non-working days are shown if the chart displays days or group of days.