The height of time header rows can be set using the headerHeight property.

Availability

Availability of this feature in DayPilot editions:

LitePro
DayPilot for JavaScriptFull SupportFull Support
DayPilot for ASP.NET WebFormsFull SupportFull Support
DayPilot for ASP.NET MVCNo SupportFull Support
DayPilot for JavaNo SupportFull Support