Why do you wanna know? It is really that much motivational for your psyche and crucial to your workouts? Are you planning to circumvent the whole screening process and use the gym as a "Meet & Greet" venue to introduce yourself to a provider? Basically people go to the gym whenever it suits their schedule and when they have the time, Providers, dancers and hot chicks (not mutually exclusive) are people too, but generally speaking, Saturday mornings are a sure bet for eye candy at the gym. If you want to expand your horizons, try Yoga. Yoga classes are chick haven

Are you trying to pick up some lady in the gym?

If you're serious about working out, you should not be oogling girls, LOL.
But it's fun to see some ladies in the gym though.  Here's my story:

A sexy blonde gal tried to pick me up in a gym once a few years back, when I was working out with my brother in a California gym. I was pushing on some heavy bench press and my brother was not spotting me. All of a sudden, this athletic blonde lady started lifting one side of the barbell - some spotting technique, huh? She should have lifted it in the middle. So I almost titled the barbell and it almost felt to the floor LOL.

At first I thought "WTF? why's this lady starting to interfere with my work out?????"
My hobby persona quickly 'kicked in' and a light in head pop up.   Could it be that she just wanted to get to know me? I said to myself - What a great pick up technique she did on me.  So I said - thanks for helping out with the spotting.  So we talked a bit and got to know each other.  However, I was leaving California the following day and was just visiting.  But it was great to know she actually wanted to get to know me and I never thought anybody would use such a technique to get to know someone in the gym.  It worked.  Definitely, she was a good lay, but I had a plane ticket and a schedule to keep.

Thursday between 5 and 7 pm are the busiest times at my Co Ed gym.
If you are looking for strippers, Saturday mornings are a good time. I quit going on Saturdays. Too many strippers

Hi,,
I much prefer early mornings.5:30 or 6 on a good day.. If not..4 to 6 pm works for me. Then there is Yoga on Sunday at 3.. I was surprised at how many men do Yoga..