Microsoft KB Archive/212545

= WD2000: Macro to Determine the Number of Days in a Specified Month =

Article ID: 212545

Article Last Modified on 10/11/2006

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APPLIES TO


 * Microsoft Word 2000 Standard Edition

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This article was previously published under Q212545





SUMMARY
This article contains a sample Microsoft Visual Basic for Applications macro that determines the number of days in a specified month.



MORE INFORMATION
Microsoft provides programming examples for illustration only, without warranty either expressed or implied. This includes, but is not limited to, the implied warranties of merchantability or fitness for a particular purpose. This article assumes that you are familiar with the programming language that is being demonstrated and with the tools that are used to create and to debug procedures. Microsoft support engineers can help explain the functionality of a particular procedure, but they will not modify these examples to provide added functionality or construct procedures to meet your specific requirements.

For more information about how to use the sample code in this article, click the article number below to view the article in the Microsoft Knowledge Base:

212536 OFF2000: How to Run Sample Code from Knowledge Base Articles

The following macro prompts for a date in mm/dd/yyyy format and prints the number of days in the specified month in a message box. Sub Date_NumDaysInMonth Dim iMon As Integer Dim sDate As String

PromptForDate: sDate = InputBox("Enter a date in the mm/dd/yyyy format") ' If Cancel was pressed, end macro. If sDate = "" Then Exit Sub ' If Date entered is not a valid date, display message. If Not IsDate(sDate) Then MsgBox "Please enter a valid date." GoTo PromptForDate End If  ' The Month function returns the month number (1-12) of the date. Select Case Month(sDate) Case 4, 6, 9, 11 sNumDays = "30" Case 2 If Year(sDate) Mod 4 = 0 Then sNumDays = "29" Else sNumDays = "28" End If     Case Else sNumDays = "31" End Select MsgBox Format$(sDate, "mmmm") & " of " & Format$(sDate, "yyyy") _ & " has " & sNumDays & " days." End Sub The macro takes leap years into consideration when it computes the number of days in February. That is, this routine divides the year by 4; if the remainder is 0, there are 29 days in February of the year specified. Otherwise, there are 28 days in February of the year specified.

