After time judgment of date

	        Date nd=new Date();
		 
			Date goServiceTime=DateUtil.stringToDate("2021-09-18"+" "+"16:00", DateUtil.DATE_TIME_FORMAT_TIME);// Door to door service time 
			Date dayend=DateUtil.additionDate(nd, 24);//+24
			// current time +24》 Door to door service time    You cannot return 
			if(dayend.after(goServiceTime)) {
				//after >     before <
				System.out.println(" You can't go back ");
			}



public static Date stringToDate(String datestr, String dateformat) {
        Date date = new Date();
        SimpleDateFormat df = new SimpleDateFormat(dateformat);
        try {
            date = df.parse(datestr);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return date;
    }

 after >  

  before <