Shadow Clock

Ptolemaic Period

Not on view

One of a handful of portable timepieces known from ancient Egypt, this fragment is from the type that told time by measuring the length of the sun's shadow. Preserved here is the block with a sloping face with a series of parallel and oblique lines engraved on its face to mark off the time. The original piece would also have had a perpendicular block set up in front of the sloping face to serve as a gnomon and cast a shadow.

Shadow Clock, Marble

Due to rights restrictions, this image cannot be enlarged, viewed at full screen, or downloaded.

Open Access

As part of the Met's Open Access policy, you can freely copy, modify and distribute this image, even for commercial purposes.


Public domain data for this object can also be accessed using the Met's Open Access API.