# Changing light scheduled

**URL:** <https://ilgmforum.com/t/changing-light-scheduled/27913>\
**Category:** Harvesting\
**Created:** [February 8, 2019, 8:54pm UTC](https://ilgmforum.com/t/changing-light-scheduled/27913 "2019-02-08T20:54:49Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![RAP](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/rap/32/351248_2.png) [@RAP](https://ilgmforum.com/u/RAP)\
**Post date:** [February 8, 2019, 8:54pm UTC](https://ilgmforum.com/t/changing-light-scheduled/27913/1 "2019-02-08T20:54:49Z")

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I am in week 2 of 12/12. Is there a way to safely change from 7am on - 7pm off to 7pm on to 7am off without screwing up the plants?

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**Author:** ![Demar](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/demar/32/175344_2.png) [@Demar](https://ilgmforum.com/u/Demar)\
**Post date:** [February 8, 2019, 9:06pm UTC](https://ilgmforum.com/t/changing-light-scheduled/27913/2 "2019-02-08T21:06:19Z")

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I’ve read several things about where people have lost electricity, and just go back about the regular schedule. So I would think just switching and sticking to it from there out wouldn’t be to much of a problem.

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**Author:** ![CJ8380](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/cj8380/32/181782_2.png) [@CJ8380](https://ilgmforum.com/u/CJ8380)\
**Post date:** [February 8, 2019, 9:13pm UTC](https://ilgmforum.com/t/changing-light-scheduled/27913/3 "2019-02-08T21:13:31Z")

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I’m just a novice, but I would let it go off at 7 pm then darkness for 24 hours then start the 12/12 back.  
I’ve seen it said its not the 12 hours of light that makes them flower 🌸 it’s the 12 hours of darkness. So I would prefer too much darkness vs too much light in flower. But wait for a pro to confirm

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<div class="post-metadata">

**Author:** ![RAP](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/rap/32/351248_2.png) [@RAP](https://ilgmforum.com/u/RAP)\
**Post date:** [February 8, 2019, 9:13pm UTC](https://ilgmforum.com/t/changing-light-scheduled/27913/4 "2019-02-08T21:13:44Z")

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Would it be better to stay dark for 24 hrs then light back on or stay light for 24 hrs then light off?

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**Author:** ![NTMAREMACH](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/ntmaremach/32/89331_2.png) [@NTMAREMACH](https://ilgmforum.com/u/NTMAREMACH)\
**Post date:** [February 8, 2019, 10:21pm UTC](https://ilgmforum.com/t/changing-light-scheduled/27913/5 "2019-02-08T22:21:02Z")

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Let lights shut off at 7:00PM then leave it off for 24 hrs. 7:00PM the next night start the 12 hr on 12 hr off schedule.

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**Author:** ![dbrn32](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/dbrn32/32/533801_2.png) [@dbrn32](https://ilgmforum.com/u/dbrn32)\
**Post date:** [February 9, 2019, 5:13am UTC](https://ilgmforum.com/t/changing-light-scheduled/27913/6 "2019-02-09T05:13:06Z")

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I agree. 24 hours dark than start your new schedule