Bug 15907 - DateTimeOffset.AddDays ArgumentException
Summary: DateTimeOffset.AddDays ArgumentException
Status: RESOLVED FIXED
Alias: None
Product: Class Libraries
Classification: Mono
Component: mscorlib ()
Version: 2.8.x
Hardware: PC Windows
: --- normal
Target Milestone: Untriaged
Assignee: Marek Safar
URL:
Depends on:
Blocks:
 
Reported: 2013-11-04 13:14 UTC by Bill Mauer
Modified: 2013-11-12 03:52 UTC (History)
3 users (show)

Tags:
Is this bug a regression?: ---
Last known good build:

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Status:
RESOLVED FIXED

Description Bill Mauer 2013-11-04 13:14:57 UTC
The following line, when called with Daylight Savings between Now and the resultant DateTimeOffset will produce the exception given:

System.DateTimeOffset threshold = System.DateTimeOffset.Now.AddDays(-7);

Exception: ArgumentException: dateTime.Kind equals Local and offset does not equal the offset of the system's local time zone.
Call stack:
System.DateTimeOffset..ctor (DateTime dateTime, TimeSpan offset)
System.DateTimeOffset.AddDays (Double days)

To be more clear, if Daylight Savings were on November 3rd, then running this code with a current date of November 4th-9th (and some of the 10th) would result in this exception.
Comment 1 Marek Safar 2013-11-12 03:52:44 UTC
This seems to be fixed in mono 3.2