I apologize for the confusion around EST/EDT. It is too late to fix/change it. Unfortunately those of us in north america almost always refer to the zones as PST/CST/EST/etc regardless of daylight savings. It's a name for the time in the area year round, regardless of the technicality around DST.
I don't mean to be disrespectful, and I have no stake in this, but being in the US myself, I will categorically state that you are wrong here.
It's a common problem, but anybody with any knowledge about time, ESPECIALLY people in the computer/programming field, need to know that there's a HUGE difference between EST and EDT, and the time zone (Eastern Time Zone).
Like I said, I have ZERO stake in this, and so am just a potential arbiter, and you are wrong on this point.
People in computer programming don't deal with EST/EDT at all. I do everything in UTC intentionally to avoid DST issues, that's how I messed up here. Most seemed to get it, as the countdown clocks and UTC conversions I saw initially were accurate.
I should have just used UTC. Lesson learned.
Looks like with orders totaling 17,778,808 the percentage ended up being 39.3727184%.
I'm almost done massaging the orders. Users will see their altered orders up on the books soon.
Cheers.