How do you set time limits in ProFTP using PAM?

["Kimsey-Hickman, Brian" <Brian.Kimsey-Hickman@occompt.com>]

I am trying to set time limits on when users can use our ProFTP site using
PAM.  I am using Potato 2.2 Rev 2.

I opened /etc/pam.d/ftp and added the line:

account     required     pam_time.so

Then I opened /etc/security/time.conf and added the line

ftp;tty* & ttyp*;username;Al0000-0500

Looking at the documentation that's all I saw that you should have to do but
obviously not
because its not working.  Does anybody have any ideas?

Thanks,

Brian