Knowledge Base

WD98: How to Perform Calculations with Dates and Times

Article ID: 182584

Article Last Modified on 7/13/2007

APPLIES TO

Microsoft Word 98 for Macintosh

This article was previously published under Q182584

SUMMARY

This article provides several examples of how to use Visual Basic for Applications code to perform calculations on dates and times. Word does this by first converting a date or time into a serial number. Word then uses the serial number in calculations and converts it back into a standard date or time format.

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.

Examples:

Sub Date_DateCalc()
      'To calculate a date seven days from the current date.
      MsgBox DateSerial(Year(Now), Month(Now), Day(Now) + 7)
   End Sub

   Sub Date_YourAge()
      'To return your age in number of days.
      'Replace "mm/dd/yyyy" with your birth date.
      MsgBox Int(Now - DateValue("mm/dd/yyyy"))
   End Sub

   Sub Date_DivideTime()
      'To display 6:00 AM (because 6:00 AM is one-half of 12:00 PM).
      MsgBox TimeSerial(12 / 2, 0, 0)
   End Sub

   Sub Date_CurrentDateTime()
      'The current date and time.
      MsgBox Now
   End Sub

   Sub Date_LastDayPreviousMonth()
      'To calculate the last day of the previous month.
      MsgBox (Now - Day(Now))
   End Sub

For additional information, please see the following article in the Microsoft Knowledge Base:

181058 OFF98: How to Run Sample Code from Knowledge Base Articles

REFERENCES

For more information about getting help with Visual Basic for Applications, please see the following article in the Microsoft Knowledge Base:

163435 VBA: Programming Resources for Visual Basic for Applications

Additional query words: wordcon vb vba vbe

Keywords: kbcode kbdtacode kbhowto kbmacroexample kbprogramming KB182584

Microsoft KB Archive/182584

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