UtcOffset.java

/*
 Swisscom Safe Connect
 Copyright (C) 2014 Swisscom

 This program 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.

 This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
*/
package com.swisscom.safeconnect.backend;

import java.util.Date;
import java.util.TimeZone;

/**
 * Created by vadim on 19.12.14.
 */
public class UtcOffset {

    private static int offsetUtc = -1;

    /**
     * get the timezone offset
     * @return
     */
    public static int get() {
        if (offsetUtc == -1) {
            // get the timezone offset
            TimeZone tz = TimeZone.getDefault();
            Date now = new Date();
            offsetUtc = tz.getOffset(now.getTime()) / 1000;
        }
        return offsetUtc;
    }
}