The timing of the conference is dependent on the availability of the venue in the host city but usually falls on the fourth week. Since June 1 is a Saturday this year, it falls on the third week. I am sure someone else from the AHA can weigh in on this in more detail since I don’t know how much wiggle room theere is on scheduling. Unfortunately, the date selection will not work for everyone.
I remember a Conference on the second weekend, teacher friends were bummed they couldn’t go.
There were some on Father’s day weekend, that had many conflicted.
Edit, used that Google thing to find past dates.
I remember Philly being the first one since I started attending that was at the end of the month. Worked out perfect as I added a couple extra recuperation days through July 4th.