C＃解析日期时间与时区

Question

How can we parse date time with time zone.

<TIMESTAMP_UTC>20180523160000</TIMESTAMP_UTC>
<TIMEZONE>UTC+8</TIMEZONE>

this should convert as in 2018-05-24 00:00:00. I tried couple of things but could not succeed. I tried the below command but it throws an error.

DateTime.ParseExact("20180523160000+08:00", "yyyyMMddHHmmssZhhmm", System.Globalization.CultureInfo.InvariantCulture)

Do you know how we can parse this with DateTime Parse methods.

Answer 1

您需要使用DateTimeOffset.ParExact

var date = DateTimeOffset.ParseExact("20180523160000+08:00", "yyyyMMddHHmmsszzz", CultureInfo.InvariantCulture);

Answer 2

Try using DateTimeOffset.Parse() instead of DateTime.Parse() as DateTimeOffset stores timezone info.

You can refer to the following MSDN link for more details:

https://msdn.microsoft.com/en-us/library/bb351654(v=vs.110).aspx

Answer 3

You could invert the sign of your timezone and then parse it with

var dateTime = DateTime.ParseExact(
    "20180523160000UTC-8",
    "yyyyMMddHHmmssUTCz",
    CultureInfo.InvariantCulture);

But if this is a good approach is probably questionable.