The lights are only on for an hourish or the lights are on from when you leave work until 11:30?
I'd say for a tank with no plants, like...6 hours of lights on time is plenty. A cheap timer can help with that if you're at work.
A few fast growing plants in there might help compete with the algae for any extra nutrients. I love Wisteria, myself. I have a 10G kit and use the light that came in the hood..my Wisteria does really well.
If it's kind of brownish patches of algae that wipe off fairly easily, it's likely diatoms. This happens in newly set up tanks..it generally evens itself out as the tank matures. You just have to continue wiping it off the areas that bother you and give the tank some time.
There are so many different types of algae...a picture would help.
Some algae is normal and healthy. If you're being 'overrun', that usually signals something is off inside the tank. Larger water changes would help..50% weekly is what I always advise regardless of what aq says.