Here you can find the source of getTomorrowTimestamp()
public static long getTomorrowTimestamp()
//package com.java2s; /*/* w ww .j a va2s . com*/ * Copyright ? R?gion Nord Pas de Calais-Picardie, D?partement 91, R?gion Aquitaine-Limousin-Poitou-Charentes, 2016. * * This file is part of OPEN ENT NG. OPEN ENT NG is a versatile ENT Project based on the JVM and ENT Core Project. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as * published by the Free Software Foundation (version 3 of the License). * * For the sake of explanation, any module that communicate over native * Web protocols, such as HTTP, with OPEN ENT NG is outside the scope of this * license and could be license under its own terms. This is merely considered * normal use of OPEN ENT NG, and does not fall under the heading of "covered work". * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. */ import java.util.Calendar; import java.util.concurrent.TimeUnit; public class Main { /** * @return Unix timestamp of tomorrow midnight in seconds */ public static long getTomorrowTimestamp() { // Get tomorrow by adding one day to current time Calendar cal = Calendar.getInstance(); cal.add(Calendar.DAY_OF_MONTH, 1); // Set time to midnight cal.set(Calendar.HOUR_OF_DAY, 0); cal.set(Calendar.MINUTE, 0); cal.set(Calendar.SECOND, 0); cal.set(Calendar.MILLISECOND, 0); return TimeUnit.SECONDS.convert(cal.getTimeInMillis(), TimeUnit.MILLISECONDS); } }