flipped the switch but no go?

Ok, can someone please tell me why when i switched my lights over to 12 &12 nothing has started showing yet and it has been all most 4 weeks?I'm stunned, just like my girls are, and this my 6 grow and i have never seen this happen.I tryed taking away another hour to help last week, but nothing still.I lost power a couple times, but short times.What could cause this to happen?, Thanks!

When you lost power, your timers light cycle changed did you compensate for that time the power was off?

That could be it, but how long would that stunt them, like i said its been at least 3 weeks since that happend.
Good thought, thanks.

im assuming theres no light leaks?

why dont you try keeping the in 24hr darkness i heard that it helps induce flowering

Sounds like light leaking in to me. A few power outage shouldn't be that big of an issue.

Show us the room and the plants.

get inside your grow area/tent when the lights are off and look for light leaks, will take a minute or 2 for your eyes to adjust tho