chasv77answered grow question 5 years ago To get to the time of day I want to start the 12/12 lighting, my plants are always in 32-36hrs of darkness, prior.
Now there are some who say that it only produces mold, well that may be with their existing humidity and ventilation restrictions for those folks????
I have never gotten a mold problem, and my average pistil wait time has been around 10 days.
If that is normal for just doing 12/12 at the get go, then it really doesn't jump start your pre-flower stage.