U.S. 305,268,835 World 6,726,303,241 09:04 GMT (EST+5) Sep 27, 2008 Greenwich Mean Time (GMT) is the equivalent of Eastern Standard Time (EST) plus 5 hours or Eastern Daylight Saving Time (EDT) plus 4 hours. Note: The U.S. POPClock is consistent with Census 2000 data and the most recent national population estimates. Population clocks on the US Census Bureau's Web site will update continuously