This article lists the largest hourglasses that have been built.
| Image | Info | Duration |
|---|---|---|
 | Constructed in 2000 by a group of smiths, this hourglass is located in Ybbsitz, Austria, and is called Panta Rhei. [1] [2] | |
 | Built in 1984 and located in Mainz, Germany, this hourglass was donated by Schott glass works. [3] | 1 hour |
 | The BMW Hourglass, a 12-metre sculpture, was unveiled in 2008 in Red Square in Moscow, Russia as a promotion for a BMW car model; 180,000 silver balls drained from the upper bulb to reveal the car. [4] [5] | 2 days [6] |
 | Called Timewheel, this hourglass is located near Hősök tere in Budapest, Hungary and was unveiled in 2004 in commemoration of Hungary's accession to the EU. [7] [8] | 1 year |
| | Built in 1991 [9] and located in the Nima Sand Museum in Ōda, Japan, this hourglass is the largest in the world; it is 5.2 metres high and contains around one ton of sand. [10] | 1 year [11] |
 | Built in 1999 and located near the beach in Jeongdongjin, South Korea; it takes one year for the sand to fall to the bottom. [12] | 1 year |
| | A two-metre high hourglass, filled with artificial blood, was installed in 2007 at Downing Street in London, UK as part of a protest demanding British intervention in the Darfur conflict. [13] [14] | |
| | In 2009, the government of Brazil installed a number of large hourglasses in major cities to mark the enacting of an anti-smoking law. [15] [16] | |
| | Filled with ground ivory, this hourglass was on display in 2005–06 at the Merseyside Maritime Museum in Liverpool and the At-Bristol Science Centre in Bristol, UK, to highlight the at-risk status of elephants. [17] [18] |
