If you're set on doing it, I'd move their light schedule ahead 1 hour a day.

A number of your animals are nocturnal, and even your corns (which are primarily diurnal in the wild) can be active at night, so you don't necessarily HAVE to change their schedules. If you keep your interaction with them in the late evening or early morning, you don't need to change anything.

Keep in mind that if there are any windows where they are kept, they won't get ANY real "nighttime" if you keep lights on during the night.