import java.io.*; import java.util.Date; import java.text.SimpleDateFormat; import java.text.DateFormat; class test { public static void main (String[] args) throws java.lang.Exception { Date now = new Date(); String a = "2016-07-06 14:30:00"; SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd hh:mm"); Date dt1 = df.parse(a); System.out.println(dt1.getTime()); System.out.println(now.getTime()); if (dt1.getTime() > now.getTime()){ System.out.println("aaa"); } } }