DateValue Function

See Also1CR9OGJ              Example7NGO995>Low

Returns the date represented by a String argument.

Syntax

DateValue(stringexpression)

Remarks

The argument stringexpression is a String representing a date from January 1, 100 through December 31, 9999.

If stringexpression includes only numbers separated by valid date separatorsTW30U0, DateValue recognizes the order for month, day, and year according to the Short Date setting in the International section of the Microsoft Windows Control Panel.  DateValue also recognizes unambiguous dates that contain month names, either in long or abbreviated form.  For example, in addition to recognizing 12/30/1991 and 12/30/91, DateValue recognizes December 30, 1991 and Dec 30, 1991.

If the year part of stringexpression is omitted, DateValue uses the current year from your computer's system date.

If stringexpression includes time information, DateValue doesn't return it.  However, if stringexpression includes invalid time information (such as "89:98"), an error occurs.

The DateValue function returns a Variant8PHEAW3 of VarType7A68ZTZ 7 (Date) containing a date that is stored internally as a double-precision number.  This number represents a date from January 1, 100 through December 31, 9999, where January 1, 1900 is 2.  Negative numbers represent dates prior to December 30, 1899.

See Also

DateSerial FunctionTE31M5

Day FunctionLANDAY

Month Function3NARHG

Now FunctionLANNOW

TimeSerial FunctionA54OFU

TimeValue Function1SIT1R5

Weekday FunctionM393JM

Year FunctionGUFX5G

DateValue Function Example

The example uses the DateValue function to convert the String provided by the user to a Variant of VarType 7 (Date).  The Variant is then used to determine the day of the week for the user-provided date.  To try this example, paste the code into the Declarations section of a form.  Then press F5 and click the form.

Sub Form_Click ()

   Dim Msg, RelVal, UserDate, Verb             ' Declare variables.

   Dim Flag, DD, MM, YY, WhatDay

   Msg = "Enter a date in the form mm/dd/yyyy."

   UserDate = InputBox(Msg)                    ' Get user input.

   If Len(UserDate) <> 10 Then                 ' Use today's date

      UserDate = Format(Now, "mm/dd/yyyy")     ' if user didn't

   End If                                      ' use right format.

   RelVal = DateValue(UserDate)                ' Get date serial.

   Select Case RelVal                          ' Use correct verb.

      Case Is < Int(Now): Verb = " was a "

      Case Is > Int(Now): Verb = " will be a "

      Case Else : Verb = " is a "

   End Select

   WhatDay = Format(RelVal, "dddd")            ' Determine day.

   MsgBox UserDate & Verb & WhatDay & "."      ' Display message.

End Sub