FirstDayOfWeek Enum

Definition

Namespace:

Microsoft.VisualBasic

Assembly:

Microsoft.VisualBasic.Core.dll

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

public enum class FirstDayOfWeek

public enum FirstDayOfWeek

type FirstDayOfWeek = 

Public Enum FirstDayOfWeek

Inheritance

Object

ValueType

Enum

FirstDayOfWeek

Fields

Name	Value	Description
System	0	The first day of the week as specified in your system settings This member is equivalent to the Visual Basic constant vbUseSystemDayOfWeek.
Sunday	1	Sunday (default) This member is equivalent to the Visual Basic constant vbSunday.
Monday	2	Monday This member is equivalent to the Visual Basic constant vbMonday.
Tuesday	3	Tuesday This member is equivalent to the Visual Basic constant vbTuesday.
Wednesday	4	Wednesday This member is equivalent to the Visual Basic constant vbWednesday.
Thursday	5	Thursday This member is equivalent to the Visual Basic constant vbThursday.
Friday	6	Friday This member is equivalent to the Visual Basic constant vbFriday.
Saturday	7	Saturday This member is equivalent to the Visual Basic constant vbSaturday.

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 FirstDayOfWeek enumeration specifies the valid values for the DayOfWeek arguments, as well as the possible return values from the functions.

The DayOfWeek argument takes the FirstDayOfWeek enumeration members.

Date-related functions also return FirstDayOfWeek values (except System).

See also

• FirstWeekOfYear
• DateFormat
• DateDiff(DateInterval, DateTime, DateTime, FirstDayOfWeek, FirstWeekOfYear)
• DatePart(DateInterval, DateTime, FirstDayOfWeek, FirstWeekOfYear)
• Format(Object, String)
• Weekday(DateTime, FirstDayOfWeek)
• Constants and Enumerations
• When to Use an Enumeration
• How to: Refer to an Enumeration Member