When you set the C1Schedule.Theme.TimeRulerMinutesFont, you can get the best zoom result by using the C1ScheduleZoomPolicy.

C1Schedule’s initial zoomfactor is 100% as shown below:

The following table illustrates the ZoomFactor set at 120% for C1Schedule. The font size for the TimeRuler minutes font is set to 6 pixels. Notice the difference in the font when using and not using the C1ScheduleZoomPolicy.