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\<bookmark_value\>IsDate function\</bookmark_value\>

# IsDate Function

Tests if a numeric or string expression can be converted to a \<emph\>Date\</emph\> variable.

## Syntax:

    IsDate (Expression)

## Return value:

Boolean

## Parameters:

\<emph\>Expression:\</emph\> Any numeric or string expression that you want to test. If the expression can be converted to a date, the function returns \<emph\>True\</emph\>, otherwise the function returns \<emph\>False\</emph\>.

### Error codes:

5 Invalid procedure call

## Example:

    Sub ExampleIsDate
    Dim sDateVar As String
        sDateVar = "1997-12-12"
        Print IsDate(sDateVar) ' True
        sDateVar = "12121997"
        Print IsDate(sDateVar) ' False
    End Sub