The MarkTimes property exports a collection of MarkTime objects, also called timers. The MarkTime object indicates a line in the schedule view, at a specified time. The Add method of MarkTimes collection adds a new timer to the schedule view. The MarkTimes collection is accessible through the MarkTimes property of the control. The ShowMarkTime property indicates whether the schedule view displays timers.  The AllowMoveMarkTime property indicates the keys to allow user to move timers ( with the Movable property on True ). The MarkTimeFromPoint property indicates the timer from the cursor.  

The MarkTime object, also called timer, can be used to:

• show a line of different styles on the schedule view, at specified time
• show a HTML label at specified time
• highlights the events that intersect with the timer

The following screen shot shows the control's timers ( red and black/blue arrow ):