Method _safelyModifyTimestampBy

packages/main/src/CalendarPart.ts:91–94

* Modify a timestamp by a certain amount of days/months/years and enforce limits * @param amount * @param unit * @param preserveDate whether to preserve the day of the month (f.e. 15th of March + 1 month = 15th of April) * @protected

(amount: number, unit: string, preserveDate?: boolean)

	 * @protected
	 */
	_safelyModifyTimestampBy(amount: number, unit: string, preserveDate?: boolean) {
		const newDate = modifyDateBy(this._calendarDate, amount, unit, preserveDate);
		this._safelySetTimestamp(newDate.valueOf() / 1000);
	}

	_getTimestampFromDom(domNode: HTMLElement) {
		const oMonthDomRef = domNode.getAttribute("data-sap-timestamp")!;