On the Tuesday, it usually ends my time at 8 a.m. EDT. Just because it began around 10 am or noon where any of us are, does not mean the event runs exactly seven days timed to the minute.
I'm in Eastern Canada.
Let's sort this out. Make a note what time it ends for you, then post so we can gather data.
Or, if you cannot because of school or work, check as early in the morning as you can. If there is a countdown timer make a note of what it says. My guess is it ends at 8 or 9a.m. local time regardless of when it started. But that is just a guess.