Timescale
Timescale displays the timescale rulers. The timescale automatically adapts to the current zoom level.
You can handle the GanttView.RequestTimescaleRulers event to specify the timescale units, their formatting, and other options.
FitRangeToWidth(DateTime, DateTime) and FitDataToWidth(Double) methods allow you to specify an area visible in the GanttView.