You can insert vertical markers called "separators" at specified times.
You can specify the following separator properties:
- location (date; required)
- color
- layer
- opacity
- width
See also DayPilot.Gantt.separators property.
JavaScript Example
gantt.separators = [ { color:"red", width: 2, location: "2016-10-26", layer: "BelowEvents" } ];