Anyone,

Okay, here's a dumb question...

We just moved into an old house which has two exterior lights mounted onto
the house on either side of the front door. I'm not sure who the
manufacturer is. Each light has two control switches, and I cannot figure
out exactly how they work together.

Switch 1 has these four settings: TEST, 1 Minute, 5 Minutes, 10 Minutes.
Switch 2 has these four settings: OFF, 3 Hours, 6 Hours, Dusk to Dawn.

Can anyone explain to me what these switches do, and how/if they work
together? What I would like to do is to set the lights so that they go on at
dusk, and go off a few hours later (or stay on all night, if necessary).

Thanks in advance,

David