Light problem!!!!

I have 15 feminized Skunk #1 plants that are 7 weeks old. Yesterday for an unknown reason my light shut off. I don't know if it was for several hours or several minutes. I am planning on going to 12/12 in about 5 days. I have been using a 18/6 light schedule. What should I do from here?

Thank You

once wont be detrimental to your plants .. just check your light and carry on

happy growin