There isn't an FAQ per se, but the events are commented so it shows you how to use it inside of the common events in the engine itself.
As for setting up events at specific times, variable 206 is Minutes and 207 is Hours, so make a conditional branch for when Hours is between 6 and 17 if you want it to be from 6am to 5pm.
There's no AM/PM included, but you can add it to the common events so that if the hours goes over 12, it changes to a PM version.