Room lights bad?? scew up light cycle?

[banditpowdercoat]

Just wondering, I have my tanks lights on 11-11.
Like them on later at night for viewing, but, when I get up @ 530am, and turn living room light on, I am wondering if thats screwing the fishies up at all? The LR light illuminates the tank fairly well. But, only on for 1/2 hr before I go to work.