gifting an auto flower

I was gonna give my friend an auto acid from paradise seeds after I veg it out for 3 weeks because he has been down on his luck, I mean he just survived a house fire... anyways he doesn't have special equipment so he just wanted to keep the auto in the window sill. My question is, how important is a consistent night schedule? Like I expect him to walk around his new place with this as his child and the amount of direct sunlight length of darkness will probably be random everyday. I know it will still flower but how detrimental would it be? To. not have a regular night cycle

For an auto, more light should be that much of a problem. However going for long periods of time WITHOUT light would be. A windowsill would be best if he can (legally or else its stupid) because the sun is pretty regular lol