Damage Control

Hiya!
I'm in the 6th week of flowering my first grow. It's a 5 gal DWC setup so I thought I'd ask here.

Yesterday, I somehow managed to damage a nice branch and mess up my 12/12 lighting schedule, it went for about 8 extra hours....

What is the best method for splinting or fixing a branch that is damaged but still connected? - Will it even work?

And will I be hurting the plants by keeping the lights on for a day and a half? Should I change the timing of them?

Any help would be great! Thanks!

8 hours may cause stress but shouldnt revert to veg. Keep them on 12/12 and duct tape up the branch (no joke it works).

Thanks, I'll try that. Gotta love duct tape!