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 local date to the date in
     * UTC time. This function performs that conversion using the TimeZone offset.
     *
     * @param localDate The local datetime to convert to a UTC datetime, in milliseconds.
     * @return The UTC date (the local datetime + the TimeZone offset) in milliseconds.
     */
    public static long getUTCDateFromLocal(long localDate) {
        TimeZone tz = TimeZone.getDefault();
        long gmtOffset = tz.getOffset(localDate);
        return localDate + gmtOffset;
    }
}