1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.tv.tuner.util; 18 19 /** 20 * Utility class for converting date and time. 21 */ 22 public class ConvertUtils { 23 // Time diff between 1.1.1970 00:00:00 and 6.1.1980 00:00:00 24 private static final long DIFF_BETWEEN_UNIX_EPOCH_AND_GPS = 315964800; 25 26 private ConvertUtils() { } 27 28 public static long convertGPSTimeToUnixEpoch(long gpsTime) { 29 return gpsTime + DIFF_BETWEEN_UNIX_EPOCH_AND_GPS; 30 } 31 32 public static long convertUnixEpochToGPSTime(long epochTime) { 33 return epochTime - DIFF_BETWEEN_UNIX_EPOCH_AND_GPS; 34 } 35 } 36
