Auto Flower seeds - Can I switch the light to 12/12 to encourage flowering

I'm doing a soil grow with ocean forest. using Dutch passion auto flower seeds. 3 of the 8 are flowering and i have been running the light for 18/6. if i switched the light to 12/12 would it help them turn into flowering? or would it slow down the process?

Thanks for the feedback.

any advice

leave em on 18/6 they will flower on their own, changing to 12/12 will not speed them up into flowering .. GL

18/6, they'll flower when ready. I haven't had success with 24/0 and autoflowers, but 18/6 seems just fine.

DaGrapeApe said:

18/6, they'll flower when ready. I haven't had success with 24/0 and autoflowers, but 18/6 seems just fine.

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What did the 24/0 do to the auto? Reason I ask is I'm vegging one of my auto's with 24/0.

Thanks all.. ive been on 18/6 from the get go and ill leave it there per your feedback.