Here you can find the source of hour()
public static int hour()
//package com.java2s; /*//from w ww . jav a 2s . c om * Copyright sunflower * * 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; import java.util.GregorianCalendar; import java.util.Locale; public class Main { public static int hour() { return calendar().get(Calendar.HOUR); } public static Calendar calendar() { Calendar cal = GregorianCalendar.getInstance(Locale.CHINESE); cal.setFirstDayOfWeek(Calendar.MONDAY); return cal; } }