Tricky question: Interrupt 12/12 cycle for 3 days --> back to 18/6

Dear all,

I need some advice. I have 8 nice Early Misty plants out on the balcony, they are about 15 inches tall each, 42 days old (from seeding) and will go into 12/12 tomorrow (indoor darkroom), as I write.
Now, the plants are all fine and I am expecting 4 females. But I do have a problem and I hope someone out there could provide me with some advice.

At the end of July (29th-31st) I will have to leave for 3 days. I will easily manage to water the plants during this time (blumat drop system), but I will have to leave them on the balcony since I do not have any lights for indoor growth.
Now, how much of a problem will that cause if the plants, which will be 4.5 weeks into flowering, will see about 16 hours of light during those three days ?

I am aware that it causes quite some stress to the Mistys, but that`s about the only way to go for me.

thanks guys for your feedback, really appreciate it !!

I would leave them inside in the dark instaed outside in the light.

Dirtyboy said:

I would leave them inside in the dark instaed outside in the light.

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so, you would leave them in the dark for about 80hours with no light at all ?!?! hmmm, haven't thought about that.

Other wise you will revert them back to vegging.

Dirtyboy said:

Other wise you will revert them back to vegging.

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Agreed - Leave them in the dark, don't leave them in the lot. They will stay in flower and as far as the plant is concerned this storm just won't quit.