Saudi Arabia Unveils World's Biggest Clock in Mecca, Hopes to Replace Greenwich with 'Mecca Time'
The Clock that Would Replace GMT Saudi Press Agency At PopSci we're comfortable with the concept of time travel, but this story is perhaps a bit more than we can wrap our heads around. The Saudi Arabian city of Mecca is building the biggest clock in the world -- a massive 1,983-foot tower sporting four timekeeping faces each 151 feet in diameter -- with the goal of displacing Greenwich Mean Time as the world's central time zone. While we've heard of the notion of large, dense bodies generating enough gravity to alter the flow of time, we're not quite sure the massive clock, which starts ticking today, has that kind of pull. Although it is an impressive piece of architecture, bearing a resemblance to London's Big Ben but with some uniquely Arabic touches. The clock will don text reading "in the Name of Allah" running beneath the clock faces...