FirstWeekOfYear Enumeration 

Indicates the first week of the year to use when calling date-related functions.

Remarks

When you call date-related functions, you can use the following enumeration members in your code in place of the actual values.

Some date-related functions take a DayOfWeek argument, a WeekOfYear argument, or both. The FirstWeekOfYear enumeration specifies the valid values for the WeekOfYear arguments, as well as the possible return values from the functions.

The WeekOfYear argument takes the FirstWeekOfYear enumeration members.

Members

Member	Constant	Description
System	vbUseSystem	The day of the week specified in your system settings as the first day of the week
Jan1	vbFirstJan1	The week in which January 1 occurs (default)
FirstFourDays	vbFirstFourDays	The first week that has at least four days in the new year
FirstFullWeek	vbFirstFullWeek	The first full week of the year

Requirements

Namespace: Microsoft.VisualBasic

Assembly: Visual Basic Runtime Library (in Microsoft.VisualBasic.dll)

See Also

Tasks

How to: Refer to an Enumeration Member

Reference

FirstDayOfWeek Enumeration
DateFormat Enumeration
DateDiff Function (Visual Basic)
DatePart Function (Visual Basic)
Format Function

Concepts

Intrinsic Constants and Enumerations
When to Use an Enumeration