5.2-metre-tall Japanese hourglass is world's largest!

A 5.2-metre-tall hourglass, with a diameter of 1 metre, displayed at a Japanese museum has been recognised by Guinness World Records as the world's largest hourglass.
The hourglass, built at the Nima Sand Museum in Oda, Shimane Prefecture, measures the duration of a year. It began ticking on January 1, 1991, using quartz sand from Yamagata Prefecture.
One tonne of the sand is designed to fall through the glass container over a year, Kyodo news agency reported.
The recognition came after the publisher of Guinness World Records confirmed the size of the museum's hourglass and sounded it out about registering the device, a museum official said.

The hourglass, named Sunagoyomi (sand calendar), is housed inside a glassy, pyramid-shaped structure and serves as the museum's centerpiece. The device is turned upside down once every year to start the count again.
Previously, the world's largest hourglass in Guinness World Records was 1.06 metres tall with a diameter of 38 cm. It was made by an American.