Main.java Source code

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Here is the source code for Main.java

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//package com.java2s;
/*
 * Copyright (C) 2016 The Android Open Source 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.TimeZone;

public class Main {
    /**
     * Since all dates from the database are in UTC, we must convert the given date
     * (in UTC timezone) to the date in the local timezone. Ths function performs that conversion
     * using the TimeZone offset.
     *
     * @param utcDate The UTC datetime to convert to a local datetime, in milliseconds.
     * @return The local date (the UTC datetime - the TimeZone offset) in milliseconds.
     */
    public static long getLocalDateFromUTC(long utcDate) {
        TimeZone tz = TimeZone.getDefault();
        long gmtOffset = tz.getOffset(utcDate);
        return utcDate - gmtOffset;
    }
}