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C# DateTime.AddMonth with day non-existent in next month

If I have DateTime date = new DateTime("1/31/2010"); and I call date.AddMonth(1). Will I get "2/28/2010" or will it freak out because "2/31/2010" doesn't exist? Or will I get "3/3/2010"?

(Also I'm not near a computer with Visual Studio)

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Mark Avatar asked Mar 24 '11 15:03

Mark


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2 Answers

  • DateTime.AddMonths Method

If the resulting day is not a valid day in the resulting month, the last valid day of the resulting month is used. For example, March 31st + 1 month = April 30th.

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JohnB Avatar answered Oct 07 '22 00:10

JohnB


You'll get the end day of the next month, so 2/28.

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Chris Dixon Avatar answered Oct 07 '22 00:10

Chris Dixon