people in other timezones that just had no opportunity to make this purchase.
This is an utterly ridiculous claim. Humans have proven for centuries they are capable of being awake and alert at whatever hour of the day is important enough for them to do so.
I made sacrifices to make the sale - others did not. There is not an hour of the day that I would not have been able to sacrifice and be present. Same is true for everyone in general.