This is not open 24 hours I don't know why it says that

This place is open 24-7, however, the back entrance off College is only available 7 AM to 9 PM, which may be the confusion.

I usually work out between 2 and 4am all week.

I have been to this gym at all hours of the day. I believe it is 24/7 except maybe holidays.

some are and some aren't open 24 hours