XL: Changing an Integer to a Microsoft Excel Serial Number

Last reviewed: February 3, 1998
Article ID: Q124932

The information in this article applies to:
  • Microsoft Excel for Windows, versions 5.0, 5.0c
  • Microsoft Excel for the Macintosh, versions 5.0, 5.0a
  • Microsoft Excel for Windows 95, versions 7.0, 7.0a
  • Microsoft Excel 97 for Windows
  • Microsoft Excel 98 Macintosh Edition

SUMMARY

Many programs export dates as integers. In order to use these numbers in calculations, you must first convert the integer dates into serial numbers which Microsoft Excel can recognize as dates.

MORE INFORMATION

Microsoft provides programming examples for illustration only, without warranty either expressed or implied, including, but not limited to, the implied warranties of merchantability and/or fitness for a particular purpose. This article assumes that you are familiar with the programming language being demonstrated and the tools used to create and 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 needs. If you have limited programming experience, you may want to contact the Microsoft fee-based consulting line at (800) 936-5200. For more information about the support options available from Microsoft, please see the following page on the World Wide Web:

   http://www.microsoft.com/support/supportnet/refguide/default.asp

The following sample Microsoft Visual Basic for Applications macro (Sub procedure) transforms an integer date to a Microsoft Excel serial number. This procedure assumes that the integer date is in the active cell of the worksheet in the form 980812 (year|month|day).

   Sub DateToSerial()

       ' Set MyDate equal to the contents of the selected cell.
       Set MyDate = Application.ActiveCell

       ' Set MyYear, MyMonth, and MyDay to the two left, two middle, and
       ' two right characters, respectively.
       MyYear = Left(MyDate, 2)
       MyMonth = Mid(MyDate, 3, 2)
       MyDay = Right(MyDate, 2)

       ' Replaces contents of the selected cell with the
       ' Microsoft Excel Serial Date.
       MyDate.Value = DateSerial(MyYear, MyMonth, MyDay)

   End Sub

The macro can be adapted for other integer date formats by changing the references in the DATE() function.


Additional query words: 5.00 5.00a 5.00c 7.00 7.00a XL98 XL97 XL7 XL5
Keywords : kbcode kbprg PgmHowto PgmOthr
Version : WINDOWS:5.0,5.0c,7.0,7.0a,97; MACINTOSH:5.0,98
Platform : MACINTOSH WINDOWS
Issue type : kbhowto


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Last reviewed: February 3, 1998
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