DateTimeOffsetExtensionsWeekOfYear Method

Returns the week number of this DateTimeOffset.

Definition

Namespace: InnerDrive.Core
Assembly: InnerDrive.Core (in InnerDrive.Core.dll) Version: 5.2.9017.0

C#

public static int WeekOfYear(
	this DateTimeOffset dateTimeOffset
)

Parameters

dateTimeOffset DateTimeOffset: This DateTimeOffset.

Return Value

Int32
The number of weeks since the week containing January 1st.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type DateTimeOffset. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

Remarks

Week number 1 in any given year is the week containing January 1st. Weeks begin on Monday by default. So Week 1 of 2009 actually began on 28 December 2008.

Example

C#

var testDate = new DateTimeOffset(2010, 11, 17, 0, 0, 0, TimeSpan.Zero);
? testDate.WeekOfYear();

// Result: 47