Here you can find the source of millisecondsToHumanTime(long period)
public static String millisecondsToHumanTime(long period)
//package com.java2s; /*/*from w ww.j a va2 s . com*/ Copyright IBM Corp. 2010, 2016 This file is part of Anomaly Detection Engine for Linux Logs (ADE). ADE is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. ADE 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. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with ADE. If not, see <http://www.gnu.org/licenses/>. */ public class Main { public static final long SECONDS_IN_MINUTE = 60L; public static final long MINUTES_IN_HOUR = 60L; public static final long MILLIS_IN_SECOND = 1000L; public static final long HALF_MILLIS_IN_SECOND = 500L; public static String millisecondsToHumanTime(long period) { if (period % MILLIS_IN_SECOND >= HALF_MILLIS_IN_SECOND) { period += MILLIS_IN_SECOND; } period /= MILLIS_IN_SECOND; long secs = period % SECONDS_IN_MINUTE; period /= SECONDS_IN_MINUTE; long mins = period % MINUTES_IN_HOUR; period /= MINUTES_IN_HOUR; long hours = period; return String.format("%02d:%02d:%02d (hh:mm:ss)", hours, mins, secs); } }