Example code for DateTime and timestamp conversion in C#
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C# DateTime与时间戳的相互转换,包括JavaScript时间戳和Unix的时间戳。
1. 什么是时间戳
首先要清楚JavaScript与Unix的时间戳的区别:
JavaScript时间戳:是指格林威治时间1970年01月01日00时00分00秒(北京时间1970年01月01日08时00分00秒)起至现在的总毫秒数。
Unix时间戳:是指格林威治时间1970年01月01日00时00分00秒(北京时间1970年01月01日08时00分00秒)起至现在的总秒数。
可以看出JavaScript时间戳总毫秒数,Unix时间戳是总秒数。
比如同样是的 2016/11/03 12:30:00 ,转换为JavaScript时间戳为 1478147400000;转换为Unix时间戳为 1478147400。
2. JavaScript时间戳相互转换
2.1 C# DateTime转换为JavaScript时间戳
System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1)); // 当地时区 long timeStamp = (long)(DateTime.Now - startTime).TotalMilliseconds; // 相差毫秒数 System.Console.WriteLine(timeStamp);
2.2 JavaScript时间戳转换为C# DateTime
long jsTimeStamp = 1478169023479; System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1)); // 当地时区 DateTime dt = startTime.AddMilliseconds(jsTimeStamp); System.Console.WriteLine(dt.ToString("yyyy/MM/dd HH:mm:ss:ffff"));
3. Unix时间戳相互转换
3.1 C# DateTime转换为Unix时间戳
System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1)); // 当地时区 long timeStamp = (long)(DateTime.Now - startTime).TotalSeconds; // 相差秒数 System.Console.WriteLine(timeStamp);
3.2 Unix时间戳转换为C# DateTime
long unixTimeStamp = 1478162177; System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1)); // 当地时区 DateTime dt = startTime.AddSeconds(unixTimeStamp); System.Console.WriteLine(dt.ToString("yyyy/MM/dd HH:mm:ss:ffff"));
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