Here you can find the source of getTodayNight()
public static long getTodayNight()
//package com.java2s; /*/*from w ww . j a va 2s . co m*/ * Copyright (c) 2008-2016 Computer Network Information Center (CNIC), Chinese Academy of Sciences. * * This file is part of Duckling project. * * 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. * */ import java.util.Calendar; public class Main { private static final int MY_HOUR_OF_DAY = 23; private static final int MY_SECOND = 59; private static final int MY_MINUTE = 59; private static final int MY_MILLISECOND = 999; public static long getTodayNight() { Calendar cal = Calendar.getInstance(); cal.set(Calendar.HOUR_OF_DAY, MY_HOUR_OF_DAY); cal.set(Calendar.SECOND, MY_SECOND); cal.set(Calendar.MINUTE, MY_MINUTE); cal.set(Calendar.MILLISECOND, MY_MILLISECOND); return cal.getTimeInMillis(); } }