Array that specifies the time headers: levels, groups, and date format.
DayPilot.Gantt.timeHeaders (array)
Item properties:
groupBy values:
format values:
See DayPilot.Date.toString() pattern variables.
[ { "groupBy": "Month", "format": "MMMM yyyy"}, { "groupBy": "Day", "format": "d"} ]
gantt.timeHeaders = [ { groupBy: "Month", format: "MMMM yyyy" }, { groupBy: "Day", format: "d"}, { groupBy: "Hour", format: "h"} ];