docs: public boolean isIn(Date beginDate, Date endDate) {
  		long beginMills = beginDate.getTime();
  		long endMills = endDate.getTime();
  		long thisMills = this.getTime();
  
  		return thisMills >= Math.min(beginMills, endMills) && thisMills <= Math.max(beginMills, endMills);
  	}