C#实现DateTime与Unix 时间戳（long）互转

1 /// <summary>
2 /// 将 DateTime 转换为 Unix 时间戳
3 /// </summary>
4 /// <param name="dateTime">需要转换的时间</param>
5 /// <returns>Unix 时间戳</returns>
6 public static long DateTimeToUnixTime(DateTime dateTime)
7 {
8     return (long)(dateTime - TimeZoneInfo.ConvertTime(new DateTime(1970, 1, 1, 0, 0, 0), TimeZoneInfo.Local)).TotalSeconds;
9 }

 1 /// <summary>
 2 /// 将 Unix 时间戳转换为 DateTime
 3 /// </summary>
 4 /// <param name="timestamp">Unix 时间戳</param>
 5 /// <returns>需要转换的时间</returns>
 6 public static DateTime UnixTimeToDateTime(long timestamp)
 7 {
 8     if (timestamp < 0)
 9         throw new ArgumentOutOfRangeException("timestamp is out of range");
10 
11     return TimeZoneInfo.ConvertTime(new DateTime(1970, 1, 1, 0, 0, 0), TimeZoneInfo.Local).AddSeconds(timestamp);
12 }