Yes, but they don't send the money to your bank account until the 21st.
This. I was wondering why the original poster keeps referring to their "payday" being on the 15th. AdSense payments hit banks on the 21st of the month for the month prior (IF you hit the $100 payment threshold that month.) Detailed accounting about that payment are not available until the 11th.
So, I will get a deposit to my bank on August 21st for ad revenue accrued during the month of July. As of August 11th, I'm able to login to AdSense and see the specific details and amounts about the July ad payments. That may or may not match the "Estimated Revenue" in the YouTube analytics for the month of July. It's usually a tad lower.