The floor has been wet for 8 months. It will take a while to dry out. How long depends on how you're approaching the process.
Did you open the ceiling under the floor?
Are there fans going above and below?
I'd give it at least a week, maybe more. I'd get a moisture meter and make sure it was dry before I buttoned it up.
They sell these water alarms that will let you know if there's a leak. Some are individual units, some are whole house systems that will actually turn the water off at the main if water hits the sensor. I put one in a customer's vacation house in upstate NY after frozen pipes burst and damaged the middle 1/3 of the house from top to bottom.
I liked it so much, I put one in my house. Cost about $900., but cheap insurance against $75,000 in water damage is there's an issue when you're on vacation or at work. Eight hours of gushing water can do some damage.
"They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety."
B. Franklin 1759