Article ID: 211445
Article Last Modified on 11/23/2006
APPLIES TO
- Microsoft Word 2000 Standard Edition
This article was previously published under Q211445
SUMMARY
To determine the number of days between two dates, you can use a Visual Basic for Applications macro to convert dates to serial numbers and then subtract one number from the other.
MORE INFORMATION
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The following Visual Basic for Applications sample macro prompts for a date in the mm/dd/yy format, and returns the number of days between the current date and the specified date.
The DateValue() function converts a specified date, beginning with December 30, 1899, to a serial number.
Syntax: DateValue(DateText$)
Examples
x = DateValue("12/30/1899") ' returns 0 or zero
x = DateValue("12/31/1899") ' returns 1
x = DateValue("12/5/1992") ' returns 33943
The Sgn() function is used to determine if the difference between two dates is negative or positive number. A negative value indicates a date in the past, while a positive value indicates a date in the future.
Sub DayDiff()
Dim sDate As String
Dim intNumDays As Integer
On Error GoTo errhandler
' Prompt for a date.
sDate = InputBox$("Enter a date in the mm/dd/yy format")
' Get difference between dates.
intNumDays = CInt(DateValue(sDate) - Now())
' Determine if difference is past or future.
If Sgn(intNumDays) = 1 Then
MsgBox "Days between " + sDate + " and today :" + CStr(intNumDays)
Else
MsgBox "The date " + sDate + " was" + CStr(Abs(intNumDays)) _
+ " day(s) ago."
End If
errhandler:
If Err > 0 Then MsgBox "Please enter a valid date."
End Sub
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
REFERENCES
For additional information about getting help with Visual Basic for Applications, click the article number below to view the article in the Microsoft Knowledge Base:
226118 OFF2000: Programming Resources for Visual Basic for Applications
Additional query words: vb vba vbe calculate difference
Keywords: kbdtacode kbhowto kbinfo kbmacroexample KB211445
