c＃解析UTC datetime [英] c# Parsing UTC datetime

问题描述

我正在尝试解析11/23/2011 23:59:59 UTC +0800 as ac＃datetime对象，但尝试使用标准的datetime解析方法，甚至datetime精确解析我得到无效的日期。

I am trying to parse 11/23/2011 23:59:59 UTC +0800 as a c# datetime object but trying the standard datetime parse method or even the datetime exact parse I get invalid date.

任何想法？

推荐答案

我建议您解析为 DateTimeOffset 而不是 DateTime ，时，MSDN中建议使用rel =noreferrer>

I would suggest you parse to a DateTimeOffset instead of a DateTime, as recommended in MSDN when using a time zone offset specifier in the format string:

using System;
using System.Globalization;

class Test
{    
    static void Main(string[] args)
    {
        string text = "11/23/2011 23:59:59 UTC +0800";
        string pattern = "MM/dd/yyyy HH:mm:ss 'UTC' zzz";

        DateTimeOffset dto = DateTimeOffset.ParseExact
            (text, pattern, CultureInfo.InvariantCulture);
        Console.WriteLine(dto);
    }
}

然后，您可以将其转换为 DateTime 值，如果你想要的，但没有像$ DateTime 的偏移量为8小时 - 一个 DateTime 被视为通用的，本地的或未指定的，无法存储特定的偏移量。

You can then convert that to a DateTime value in UTC if you want, but there's no such thing as "a DateTime with an offset of 8 hours" - a DateTime is either regarded as universal, local or unspecified, with nowhere for a specific offset to be stored.

DateTime 是一个以各种方式好奇的类型，并且可能导致不必要的开发者出现问题。

DateTime is a curious type in various ways, and can cause problems for the unwary developer.

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