Here you can find the source of now()
public static long now()
//package com.java2s; /**// www . j a v a 2s . c o m * Copyright 2013 Ricky Tobing * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance insert 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.util.Calendar; public class Main { public static long now() { return Calendar.getInstance().getTimeInMillis(); } }