Minimum hours needed during late flowering...need answer ASAP..Please !

Major heat problem...

1 1/2 to 2 1/2 weeks until harvest...Indicas soon ..Sativas later ( early to mid July )

Can't do anything about heat...

AC going 24...fans galore.

Night time for room barely go below 80 ( Misting room with ice cold water...have Ice blocks..)

Lights on only mid to high 80s..a few 90s ( Light ducted outside ) but I can't get my room to cool down enough when lights are out.

We are having a major heat wave..way too early in the year.

I had planned on finishing for the summer soon anyway but this heat has caught me off guard.

Breakers can't handle another AC...nor do I have a place to put it...nor the money.

Can I get by the only 9 to 10 hours this late in flowering ?

Room runs at night and getting the later start time would allow for more ambient cooling.

So maybe start an 1 and half late and finish an hour an half early ?

9 hours enough ?

Or should I just take the heat ?...plants seem kinda stunned sometimes due to the lack of temperature drop. Not bad now but it's supposed to get hotter.

Help?

Only issue I see is misting late in flower, warm temps to boot, just asking for mold/fungus/bud rot. High 80s is not that bad as long as you have good airflow. Are your plants showing any signs of heat stress or just you?