Question

where is sand clock origin​

Answer 1

Answer:

The hourglass first appeared in Europe in the eighth century, and may have been made by Luitprand, a monk at the cathedral in Chartres, France. By the early fourteenth century, the sand glass was used commonly in Italy. It appears to have been widely used throughout Western Europe from that time through 1500.

Answer 2

Answer:

The first sand clock was invented by French monk called Liutprand in the 8th century AD.

Hope it helps