Here you can find the source of millisToCalendar(long millis)
public static GregorianCalendar millisToCalendar(long millis)
//package com.java2s; /*// w w w . j a v a 2 s .c o m * Copyright 2013 Florian M?ller & Jay Brown * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * * * This code is based on the Apache Chemistry OpenCMIS FileShare project * <http://chemistry.apache.org/java/developing/repositories/dev-repositories-fileshare.html>. * * It is part of a training exercise and not intended for production use! * */ import java.util.*; public class Main { public static GregorianCalendar millisToCalendar(long millis) { GregorianCalendar result = new GregorianCalendar(); result.setTimeZone(TimeZone.getTimeZone("GMT")); result.setTimeInMillis((long) (Math.ceil((double) millis / 1000) * 1000)); return result; } }