Changing flowering light on/off time?

So will changing the time the lights go off and on by 4 hours in my flowering room stress them? I'm just shy of 6 weeks into flowering and had some electrical problems. One of my lights started tripping the stupid garage 120v ground socket thing and when it does that, it kills the cooling to the tube the light sit it. Lights on in tubes w/out fans is bad. So after a weekend of monitoring the situation its not doing it anymore. But my paranoid brain doesn't like that my lights come on while im at work. So I changed my 12/12 from 9am-9pm on, to 5:30am-5:30pm on so I can be sure everything is fine w/ lights turn on. Will this cause problems this far into flowering?

Thanks guys!

I've done it with out problems. Now you have made the switch..you will have to ride the tiger and see

Agreed ^^^

I think you will be fine, but since the switch is made you just need to ride it out. Most of the time you would want to slowly change your on/off time by 30 minutes or an hour each day over the course of a couple days until you get to where you want your cycles to start and end.

You will be fine. If people only knew how bad I fuck up the 12/12 portion of the grow....lmao

Sometimes im as much as 45 min off either way and I never have issues. Could just be luck too