HELP! Light schedule for flower!

[homegrown]

Sorry, Help! seems a little dramatic..lol. I have switched over to 12/12. but my lights are on during the day..i want to switch it so lights are on at night. Do i have to increase an hour on my timer for 12 days or is their an easier way to do this... im a little stoned so i dont even know if iv explained this right... haha.

 

[Tersky]

Lol i got ya. I did this for the summer. Had the lights on at night because of the heat and switched to daytime when it started to cool. What i did was i had one tent in flower and was switching the other to flower so the lights normally came on at 9pm and went off at 9am. The days i made the switch, when the lights went off at 9am i left them off 24 hrs and turned them on at 9am the next day. Yeah i lost a day of light, but i didnt want to have to deal with 1 hr changes daily for a week or two. The plants didnt seem to mind. Had one tent halfway through flower. Now if it were close to harvest i would have waited until after harvest to do the switch.

 

[Mr.furley]

Agreed, roll the dark 24hrs.