Java tutorial
//package com.java2s; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; import java.util.Locale; public class Main { public static String getDateTime(Calendar calendar) { int year = calendar.get(Calendar.YEAR); // if (year>3900) year-=1900; SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.getDefault()); //Date date = new Date(); return dateFormat .format(new Date(year - 1900, calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH))); } }