Outdoor vs Indoor yield and finish times

This is only my second run at autos and I’m starting to see a pattern growing these outdoors. I’ve checked out some grow diaries of the same strains I’ve run and two things I’ve noticed...the indoor grows seem to finish earlier and yield more. I can only assume it’s from running 20-24 hours of light. True or false? Don’t think it’s the way I grow as my photo yields are substantial.

Reason I ask is I’m at day 67 of a 70 day strain and they are at least 2-3 weeks away. Most of the indoor grows I’ve checked out have been harvested between 70-75 days.

It doesent care if its inside or outside. What it cares about is the amount and quality of light, temperatures, humidity etc. If both are exact same then it doesent know if its indoor or outdoors. If you have 1w led inside, then that will obviously be pretty shitty source and the plant would grow extremely slow under it. But then if you compare shady cold outside area to perfect inside situation, then inside will produce more and faster.

If you harvest an auto at 70-75 days from seed, you are harvesting it too soon in 99.99999% cases. Growing times that short are just marketing bullshit in almost all cases and would just cause too soon harvesting. Some smallest fastest one could go ready in that time. Make that 75 days the flowering time and add 3 weeks for vegging and you got more realistic times.

I agree with pretty much everything CannaOnerStar said, but I'll add that from what I've seen, it's the temps that are impacting them the most. The amount of light seems to impact the overall size of the plants, the amount of warm vs. cool temps seems to impact the speed of growth and maturation.

You have to factor in overnight temps, and that if the "high" on a given day is say 85º, the average temps throughout the 24 hour period are well below that, and probably well below where you keep your indoor temps. Cold temps equal slow metabolism equal slow growth and maturation. At least that's been my experience.

The amount of direct sunlight does have a huge impact. In my garden the edges of the cannabis bed get less light than the center, and the plants consistently and obviously grow in size in correlation with the amount of direct sunlight they get.