Soilless Grow - WW, BB, KK, PPP, PS, NL

Arghhh I messed up. Yesterday they had their first 12 hours of dark (10am-10pm). However...I had the overhead light on, and forgot to turn it off last night. When I woke up at 1 today, I had this feeling...so I went and checked, and it was on. Can anyone tell me what the best course of action in this situation is? I'd like them to stay dark for the same time period, but I'm open to suggestions.

just continue as normal, don't sweat it.

right on, thanks man