The World's Largest Clock finally ticks for the first time last wednesday August 11, 2010 to signal the first day of the fasting month before Ramadan in Saudi Arabia.
Located at the heart of Mecca, close to the Grand Mosque, the royal clock towers the entire city and is said to be seen as far as 19 miles.
The royal clock, designed by German Premiere Composite Technologies Company, is positioned around 380 meters high on a skyscraper with the total height of the skyscraper being around 600 meters high. It is six times larger the the Big Ben clock of London.
The clock tower consists of four faces with each face measures 151 feet in diameter. It will be illuminated by 2 million LED lights with an Arabic Scripture Reading - "God is Greatest" inscribed on each face.
21,000 white and green colored lights are fixed on top of the clock which would flash each day to signal Islam's five daily prayers. It will be seen to as far as 19 miles.
This large clock would be operational after a three month period and it began last Wednesday. When done, at around 1970 feet (600 meters), this would be the second tallest and largest tower in the world after Burj Khalifa.
The clock tower is part of seven clusters of towers which when done, will also contain shopping malls, 2,000 hotel rooms, a space for around 30,000 to pray in, and two helipads.
Above is the initial 3d rendering of the royal clock. Below you'll see the planned spaces for the complex.