Just Out of Curiosity...

Since AFT's are usually nocturnal, should I keep the UVB on at night?
Since their days are our nights, and vice versa?

 

no they need it dark at night. I think that nocturnal lizards need less uvb than daiturnal reps.

 

Nope, if you have light, you use as the sun would work. The sun doesn't shine in the night now does it

About 12 hours, during regular daylight time, at night turn them off to "mimick" the sun setting etc.