The Largest Clocks In The World

The largest clock face in the world is the Dokaae clock face at the top of the Makkah Royal Clock Tower in the Abraj Al-Bait complex in Mecca, Saudi Arabia, at 43 meters (141 feet) in diameter, about six times the diameter of the clock face on London's Elizabeth Tower (commonly miscalled "Big Ben," which is actually the name of the bell inside the tower). The Guinness record for the largest clock ever made of any kind was a temporary laser-and-stone installation by Jim Bowers and laser physicist Marcus Hertlein at the 2011 Burning Man festival in the Black Rock Desert, with a 3.28-kilometer (2.04-mile) diameter. The clocks below are the permanent fixtures, ranked by face diameter.

1. Makkah Royal Clock Tower (Abraj Al-Bait)

The Abraj Al-Bait is a seven-tower complex of hotels and apartments next to the Masjid al-Haram in Mecca, Saudi Arabia. The central tower, the Makkah Royal Clock Tower Hotel, rises to a height of 601 meters (1,972 feet) and is the world's fourth-tallest building, behind the Burj Khalifa, Merdeka 118, and Shanghai Tower. The four identical clock faces at the top each measure 43 meters in diameter (about six times the diameter of the clock faces on the Elizabeth Tower in London) and were certified by Guinness World Records on November 28, 2011. The clock was activated for a three-month trial on the first day of Ramadan in August 2010 and was fully operational by the building's completion in 2012. The faces are illuminated at night by approximately two million LED lights and are visible from up to 25 kilometers away. The clock was designed by German and Swiss specialists and built by the Saudi Binladin Group. The minute hand on each face is approximately 22 meters long.

2. Istanbul Cevahir Mall

The second-largest clock face in the world sits on the glass roof of the Istanbul Cevahir shopping center in the Şişli district of Istanbul, with a single face 36 meters (118 feet) in diameter. The clock was completed with the rest of the mall in 2005 and was specifically designed to take the record from the Floral Clock in Tehran, which had been completed earlier that same year. The numerals are about three meters high and are arranged on the transparent roof of the mall's central atrium. Istanbul Cevahir held the title of largest leasable shopping center in Europe from 2005 to 2011 and remains one of the largest shopping centers in the world.

3. Bhestan Floral Clock (Surat)

The Bhestan Floral Clock in the Bhestan suburb of Surat, in Gujarat, India, is the largest floral clock in the world, with a face 24.25 meters (79.5 feet) in diameter. The clock takes its color and pattern entirely from living plants and soil and a circular reinforced concrete slab below the face houses its mechanism. Each of the hands weighs approximately 800 kilograms (1,763 pounds). The clock was built on roughly 23 acres of land donated by the Navin Fluorine company. As a botanical garden clock, the face exceeds the previous record-holder in this category (a Swiss floral clock) by about 2.2 meters.

4. Aekyung Tower

The Aekyung Tower in the Hongdae district of Seoul, South Korea, displays a single clock face 24 meters (79 feet) in diameter on its facade. The clock was added to the building in 2018 and is the largest clock face in East Asia and the largest single-face exterior building clock outside the Middle East. The Aekyung Group is a South Korean conglomerate primarily known for chemicals, cosmetics, and aviation interests, and the clock-bearing tower serves as one of its corporate landmarks in the Mapo-gu commercial district.

5. Park Heroyiv Floral Clock

The Park Heroyiv (Heroes' Park) Floral Clock in Kryvyi Rih, Ukraine, has a single face 22 meters (72 feet) in diameter and was completed in 2011 to mark the 20th anniversary of Ukrainian independence. It is the second-largest floral clock in the world after the Bhestan clock and the largest such clock in Europe. The clock is set in a public park in central Kryvyi Rih, the long industrial city in central Ukraine known for its iron-ore mining. The minute hand is approximately 11 meters long.

6. Central do Brasil

The 122-meter (400-foot) tower of the Central do Brasil railway station in Rio de Janeiro carries four clock faces of 20 meters (66 feet) in diameter each, the largest clock face in South America. The station opened in 1858 and has been the central rail terminus of the Estrada de Ferro Central do Brasil network ever since. The current tower was completed in 1943 in the Art Deco style of the period, replacing an earlier station building. The station remains a major transit hub in Rio, connecting to the city's metro and bus networks, although most of the long-distance lines toward São Paulo and Minas Gerais have been deactivated and the station now primarily handles commuter rail.

7. Baitul Khairaat Grand Mosque

The Baitul Khairaat Grand Mosque in Palu, Central Sulawesi, Indonesia, was completed in 2025 with a single clock face 19 meters (62 feet) in diameter, the largest clock in Indonesia and the largest mosque clock outside Mecca. The mosque was built by the Indonesian state construction company PT PP as part of the long reconstruction effort following the 2018 Palu earthquake and tsunami, which had destroyed much of the city. The Indonesian World Records Museum (MURI) certified the clock as the country's largest in October 2025.

8. Duquesne Brewery Clock

The Duquesne Brewery Clock on Mount Washington in Pittsburgh, Pennsylvania, is the largest clock face in North America, with a single octagonal face 18 meters (60 feet) across. The clock was designed by John Franklin, built in Georgia, and shipped to Pittsburgh in 1933, where it was originally installed at a hillside location displaying various beverage advertisements before being purchased by the Duquesne Brewery Company in 1961. The hour hand is 7.6 meters (25 feet) long and the minute hand 10.6 meters (35 feet). The mechanism is driven by a 1.25-horsepower Janett motor. The face was used as advertising space for various brands including Coca-Cola through 2017.

9. Gohar Park Clock

The Gohar Park Clock in Sirjan, Kerman Province, Iran, has a single clock face 17 meters (56 feet) in diameter and was completed in 2021. It is the largest clock in Iran, displacing the Tehran Floral Clock (15.1 meters) which had held the title since 2005. The clock is integrated into a mountain backdrop in the park and is the largest mountain-mounted clock in the world.

10. Colgate Clock, Jersey City

The Colgate Clock in Jersey City, New Jersey, is an octagonal single-faced clock 15.2 meters (50 feet) across, originally installed in 1924 on the roof of the Colgate-Palmolive headquarters building on the New Jersey waterfront across the Hudson River from Lower Manhattan. When the headquarters building was demolished in 1985 to make way for the Goldman Sachs Tower, the clock was moved approximately 400 meters south to a ground-level location at Exchange Place, where it remains as a regional landmark visible from much of the Manhattan waterfront. The minute hand is approximately 7.9 meters (26 feet) long.

The 20 Largest Clock Faces