The addMinutes method returns a new DayPilot.Date value with the specified number of minutes added.
DayPilot.Date.addMinutes(minutes)minutes (number) - number of minutes to add.
The current value is not changed. The method returns a new DayPilot.Date object.
const start = new DayPilot.Date("2025-03-01T08:00:00");
const result = start.addMinutes(15);