What time zone ????
Personally I'm on CT time (Near Chicago, IL).
The thought was an after dinner thing.
Because of time zone differences, out of those 4 hrs, we could have good numbers for about 2 hours. Not much help for those outside the USA.
The thought is, the higher the numbers the more likely more would want to be there, the higher the numbers.
Nothing is set in stone, the hours can be adjusted. But I think the best times would be in that window.