Sundials - World's Oldest Clocks

North American Sundial Society

Adler Sundial Conservation

The Adler Planetarium has one of the largest sundial collections in the world.  Here old dials are cleaned and restored.  This is a patient art.  Learn how it's done.

Site Search

Current Sun

Sundial = Civil + EoT

We use session cookies on this site. Please review our policies or click OK to approve and continue.