Here you can find the source of today()
public static Calendar today()
//package com.java2s; import java.text.SimpleDateFormat; import java.util.Calendar; public class Main { public static Calendar today() { Calendar cal = Calendar.getInstance(); cal.set(Calendar.HOUR_OF_DAY, 0); cal.set(Calendar.MINUTE, 0); cal.set(Calendar.SECOND, 0); cal.set(Calendar.MILLISECOND, 0); return cal; }//w w w . j a va 2 s . com public static String today(String pattern) { Calendar cal = today(); return new SimpleDateFormat(pattern).format(cal.getTime()); } }