>Hi,
>
>This could be an easy one. I have a textbox on a form who's value must be a 24 hour clock value. (00:00, 06:00, 12:00, 13:00, etc) Is it possible to change the Input Mask property such that the user can't enter a false time? I set the input mask to 99:99, but that allows some false values such as 45:94.
>
>Thanks,
>Chris

You could not do it with InputMask. Check Download section here, I'm sure, there are few time classes. You can put your code in KeyPress...