They don't have the other NA races that late, so why only Vegas? I understand wanting it to be a night race, but I agree 8pm is also night but not ridiculously late
If it's during the day they don't get to show off the pretty lights of Vegas, if it's at 20 no Europeans will watch it. So they end up with this ridiculous non-solution, where it's still too early for Europeans and now also too late for Americans. At least the Australians and Asians get to finally watch it at a reasonable hour.