Preformat the column as time and try this.
Right click sheet tabview codeinsert this

Private Sub Worksheet_Change(ByVal Target As Range)
If Target.Column < 5 Then Exit Sub
Application.EnableEvents = False
Target = Left(Target, 2) & ":" & Right(Target, 2)
Application.EnableEvents = True
End Sub

--
Don Guillett
SalesAid Software

"Carole O" wrote in message
...
Excel 2003

I have a co-worker who enters time on a spreadsheet. She would like to
have
the time cells fomatted so when she enters 1456 it appears in the cell as
14:56. This doesn't work when I format, cell, time, 13:30. I've looked
at
format, cell, special (which would be a logical place to put something
like
this), to no avail.

TIA
CaroleO