本区区时当前时间与时间戳的转换

        /// <summary>
        /// 本区区时当前时间转换为时间戳
        /// </summary>
        /// <param name="localTime">本区区时当前时间</param>
        /// <returns>时间戳</returns>
        public static long ConvertLocalTimeToTimestamp(DateTime localTime)
        {
            DateTime greenwishTime = localTime - TimeZone.CurrentTimeZone.GetUtcOffset(localTime);// 获取零区时时间
            TimeSpan timeSpan = greenwishTime - new DateTime(1970, 1, 1, 0, 0, 0, 0);// 计算时间间隔
            long timeStamp = Convert.ToInt64(timeSpan.TotalSeconds);// 计算全部秒数，得到时间戳
            return timeStamp;
        }

        /// <summary>
        /// 时间戳转为本区区时当前时间
        /// </summary>
        /// <param name="timeStamp">时间戳</param>
        /// <returns>本区区时当前时间</returns>
        private static DateTime ConvertTimestampToLocalTime(long timeStamp)
        {
            TimeSpan timeSpan = new TimeSpan(Convert.ToInt64(timeStamp + "0000000"));// 计算时间间隔
            DateTime greenwishTime = new DateTime(1970, 1, 1, 0, 0, 0, 0).Add(timeSpan);// 计算零区时当前时间
            DateTime localTime = TimeZone.CurrentTimeZone.ToLocalTime(greenwishTime);// 转换为本地区时当前时间
            return localTime;
        }