>Hi all,
>
>I should like put a security to encode fields time. (HH: mm).
>
>HH:mm must be between 00:00 and 24:00
>HH:mm must be smaller or equal to HH:59. ( NOT HH:61 )
>
>how can i do it ?
>
>thank in advance

What are you using to enter time? You can search here for the class Marcia Akins developed for entering time. Or simply use two spinners.