First time outdoor auto grow, north uk

So this is my first attempt at any outdoor grow or growing auto flowers, so will be interesting to see the results, especially with the nice weather we’re getting during lockdown. BCN XXL & Amnesia were the first two i germinated and planted, but after relocating the plants in my garden i realised i had space for 2 more, hence the Tangerine & Purple. The Tangerine broke soil 4 days after the original two, the purple punch took longer to germinate and was only planted on day 6, so this one will be a week behind the rest once it pops. Obviously no nutes added yet, just been feeding with water from my heavily stocked fish tank, so far i’m happy with the results considering it’s been just about a week. The XXL has really spread it leaves out wide, standing at about half an inch tall. The amnesia has taken a taller approach, standing at just over an inch but with less broad leaves. My garden gets great sunlight during the day, hitting the plants at around 8am and going down around 7:30pm. It looks like the weather will be turning rainy for the next week or so, so i will be transferring the planting into a makeshift grow box inside until the weather perks up, hopefully will have no negative effects but we’ll soon see! 🤞🏻 Question for anyone who has temporarily moved outdoors plants inside, should i try and mimic the light schedule they’ve received outside? or would a 20/4 schedule be safe for them, to try and get as much growth as possible while they’re indoors? thanks in advance!