Field containing hh:mm:ss.nn

Hi

Want to put in several fields that will collect estimated times for an event, so entrants can be seeded. The format we want to have is something along the lines of the following:
hours:minutes:seconds.fraction
ie h:i:s.u

Ideally u would be two 2 decimal places. I don't think I can do that with a date field so was wondering if there was anyway I could do it with a text field and some validation?
Thanks in advance

Hi

Unfortunately, right now, we don't have any validation like that. So you will have to use text field to allow registrants to enter data but without any validation

Tuan