C# - How to calculate the current day-of-year?

Today is 5.27.2010 - this means it is da开发者_Go百科y 147 of this year.

How do I calculate that today is 147 based on the current date?

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There's a DateTime property named just that: DayOfYear

Console.WriteLine(DateTime.Now.DayOfYear);

Or for any date:

var d = new DateTime(2010, 5, 30);
Console.WriteLine(d.DayOfYear);

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Actually, it's pretty easy:

int dayOfYear = DateTime.Today.DayOfYear;

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C#'s DateTime class has a method called DayOfYear() that you could use.

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Has anyone mentioned the DateTime.DayOfYear property?

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DateTime dt = new DateTime(2001, 12, 14);
            dynamic dayofyear = dt.DayOfYear;
            dynamic datofweek = dt.DayOfWeek;