This could be hard... because you never know what will happen when after it has started. it could go super fast or super slow. Only the start is controllable. But you could maybe have a couple prizes that are time based. "Closest comment that follows rules and IS CLOSEST to 05:55 UTC" or something like that. But trust me.... that alone will get confusing. Us Americans have never used anthing than EST, CST, MST and PST. And according to testing results. We can't do math.. right? XD