Section B.3. Date and Time Constants | Appendix B. VBScript Constants

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B 3 Date and Time Constants

B 3 Date and Time Constants

A number of functions (DateDiff, DatePart, Weekday, and WeekdayName) have a FirstDayOfWeek parameter whose value can be one of the day of the week constants (vbSunday through vbSaturday) as well as vbUseSystemDayOfWeek.

The DateDiff and DatePart functions also have a FirstWeekOfYear parameter whose value can be vbUseSystem, vbFirstJan1, vbFirstFourDays, or vbFirstFullWeek.

Constant	Value	Description
`vbSunday`	1	Sunday
`vbMonday`	2	Monday
`vbTuesday`	3	Tuesday
`vbWednesday`	4	Wednesday
`vbThursday`	5	Thursday
`vbFriday`	6	Friday
`vbSaturday`	7	Saturday
`vbUseSystem`	0	Use the date format defined by the local computer's regional settings
`vbUseSystemDayOfWeek`	0	Use the day of the week specified in your system settings for the first day of the week
`vbFirstJan1`	1	Use the week in which January 1 occurs; this is the default value for both DateDiff and DatePart
`vbFirstFourDays`	2	Use the first week that has at least four days in the new year
`vbFirstFullWeek`	3	Use the first full week of the year

Part I: The Basics

Introduction

Program Structure

Data Types and Variables

Error Handling and Debugging

VBScript with Active Server Pages

Programming Outlook Forms

Windows Script Host 5.6

VBScript with Internet Explorer

Windows Script Components

Part II: Reference

The Language Reference

Part III: Appendixes

Appendix D. Locale IDs

Appendix A. Language Elements by Category

Appendix B. VBScript Constants

Appendix C. Operators

Appendix E. The Script Encoder