Here you can find the source of timeF(OffsetDateTime time, ZoneId zone)
private static String timeF(OffsetDateTime time, ZoneId zone)
//package com.java2s; /*//from www .j a va 2 s .c o m * Copyright 2018 John Grosh (john.a.grosh@gmail.com). * * 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.time.OffsetDateTime; import java.time.ZoneId; import java.time.format.DateTimeFormatter; public class Main { private static String timeF(OffsetDateTime time, ZoneId zone) { return time.atZoneSameInstant(zone).format(DateTimeFormatter.ISO_LOCAL_TIME).substring(0, 8); } }