PeopleCode to change a Time display on a page?

PeopleCode to change a Time display on a page?
We are upgrading from 8.9 to 9.1. PeopleSoft changed the time format from HH:MI to HH:MI:SS in 9.1 on the Punch Times. On the Timesheet page, TL_RRTD_PCH they only want to see HH:MM as it was in 8.9. I don't want to change the time format on the fields PUNCH_TIME_1, PUNCH_TIME_2, PUNCH_TIME_3, etc.

I'm searching for PeopleCode to change the time display on that specific page without changing the field time format.

Any suggestions?

Thanks!