The `TimeValue` function in VBA (Visual Basic for Applications) is used to convert a string that represents a time into a `Date` data type that VBA can recognize and work with.
Here is the syntax for the `TimeValue` function:
TimeValue(time)
- `time` is a string expression that represents a time from `0:00:00` (12:00:00 AM) through `23:59:59` (11:59:59 P.M.).
Here’s an example of how you might use the `TimeValue` function in VBA:
Sub ConvertTime()
Dim strTime As String
Dim vbaTime As Date
' This is a string representing the time "10:30 PM"
strTime = "22:30:00"
' Convert the string to a time value
vbaTime = TimeValue(strTime)
' Output the converted time
MsgBox "The time is: " & vbaTime
' You can now use vbaTime as a Date/Time value in VBA
' For example, you can format it as a string in a specific way:
MsgBox "Formatted Time: " & Format(vbaTime, "hh:mm:ss AM/PM")
End Sub
In this example, we’ve declared a string that represents a time in the 24-hour format. We then used the `TimeValue` function to convert this into a `Date` datatype. Once converted, we can use the result in any date and time-related operation in VBA.
Remember that while the `TimeValue` function uses a Date data type, it effectively only stores time information; the date part would be set to the “zero” date (`30-Dec-1899`) in VBA when you use a `TimeValue` function without an associated date.
If the `TimeValue` can’t convert the string because it’s not a valid time format, it will raise a runtime error, so you should ensure that the strings being converted are in a valid time format or use error handling to manage this situation.