c# – DateTime解析错误：提供的DateTime表示无效时间

概述我有一种情况,日期是“3/13/2016 2:41:00 AM”.当我按时区转换日期时,我收到错误. DateTime dt = DateTime.Parse("3/13/2016 2:41:00 AM");DateTime Date_Time = TimeZoneInfo.ConvertTimeBySystemTimeZoneId(dt, "Eastern Standard Time", 我有一种情况,日期是“3/13/2016 2:41:00 AM”.当我按时区转换日期时,我收到错误.

DateTime dt = DateTime.Parse("3/13/2016 2:41:00 AM");DateTime Date_Time = TimeZoneInfo.ConvertTimeBySystemTimeZoneID(dt,"Eastern Standard Time","GMT Standard Time");Response.Write(dt);

执行后,我收到此错误：

The supplIEd DateTime represents an invalID time. For example,when
the clock is adjusted forward,any time in the period that is skipped
is invalID. Parameter name: dateTime

解决方法 尝试检查时间是否模糊或有效时间. Due to the daylight change你提到的时间,即2：41：00 AM不存在,因为时钟提前1小时,因此日期无效或含糊不清.

2016    Sun,13 Mar,02:00  CST → CDT   +1 hour (DST start) UTC-5h        Sun,6 Nov,02:00   CDT → CST   -1 hour (DST end)   UTC-6h

您也可以参考此博客：System.TimeZoneInfo: Working with Ambiguous and Invalid Points in Time

System.TimeZoneInfo (currently available as part of .NET Framework 3.5
Beta 1) contains methods for checking if a DateTime instance
represents an ambiguous or invalID time in a specific time zone. These
methods are particularly useful for valIDating user-supplIEd points in
time.

Background information

Time zones that adjust their time for Daylight Saving Time (in most
cases by moving the clock time back or forward by 1 hour) have gaps
and repeats in the timeline — wherever the clock time was moved
forward or back by the adjustment. Let’s use Pacific Standard Time as
an example. In 2007 Pacific Standard Time (PST) changes to Pacific
Daylight Time (PDT) at 02:00AM (“spring forward”) on the second Sunday
in march and then returns at 02:00AM (“fall back”) on the first Sunday
in November

要检查时间是否有效,您可以使用：

TimeZoneInfo.IsInvalIDTime

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