Put only date (not time too) in variable from FileDateTime function

What would be the syntx for the variable, dtFileDate to contain only the date (not the time) from the FileDateTime function? For example put 1/21/2006 in the variable dtFileDate when FileDateTime is 1/21/2006 11:57:16 AM?

In other words, from:
dtFileDate = FileDateTime("C:\USR\MIKE\AT0158.MB")

I need dtFileDate to contain only the date 1/21/2006 (not the time 11:57:16 AM, too).

Thanks so very much. mikeburg