While the 9PM – 3AM – 9AM – 3PM has a nice symmetry to it, those might not be the times that make the most sense. Lets look at the 9AM one – East Coast NA 9AM, West Coast 6AM, London 2PM Thursday Afternoon, Berlin 3PM, Moscow 5PM, Sydney 1AM. It would work out okay for those in Western Australia, and East Asia (of people who have a normal schedule). Before doing this randomly, take of poll of people who would be interested in playing, and where they live (and have them mention if weekday evenings aren’t good).