Flowering during long days

You can but it probably will reveg. I believe minimum 10 hours darkness for bloom.

Ok. Maybe I can simplify this. Of you bring a plant inside to trigger the flower cycle with a 12/12 schedule, can you return the plant to the outside and continue the flowering even though there is about a 15/9 light to dark cycle outside?

Most plants included marijuana will bloom with a 14/10 light cycle. You need the 10 hour of darkness.