Paste the following code into a Module, and run it:

Public Sub CountDown()
Const oneSecond As Double = 1 / 24 / 3600
With Worksheets("Sheet1").Range("A1")
.Value = .Value - oneSecond
End With
Application.OnTime Now + oneSecond, "CountDown"
End Sub


"CC" a écrit dans le message de news:
...

I need to build a countdown timer and show it in a Excel spreadsheet


thanks