Here you can find the source of format(long milliseconds, String format)
public static String format(long milliseconds, String format)
//package com.java2s; /*/*from w w w .j a va2 s . co m*/ * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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. */ import java.text.SimpleDateFormat; import java.util.Date; import java.util.TimeZone; public class Main { private static TimeZone CURRENT_TIME_ZONE = TimeZone.getDefault(); public static String format(long milliseconds, String format) { SimpleDateFormat sdf = new SimpleDateFormat(format); sdf.setTimeZone(CURRENT_TIME_ZONE); Date t = new Date(); t.setTime(milliseconds); return sdf.format(t); } }