Same problem as a lot of the other formats, there's a big disadvantage unless you're in the EST. Gee, I wonder who won last year?
US population by time zone (2006) ....
Eastern Standard Time (EST) - 141,631,478
Central Standard Time (CST) - 85,385,031
Mountain Standard Time (MST) - 18,715,536
Pacific Standard Time (PST) - 48,739,504
Source(s): http://answers.google.com/answers/thread…