Sundials - World's Oldest Clocks

North American Sundial Society

Sundial Registry

603_ny_ny_77st_1aThe Sundial Registry is a list of sundials registered with The North American Sundial Society that contains nearly 700 dials across North America.  These dials represent significant sundial art, sculpture, and historical works that are on public display.

It is the intention of the NASS Register to list every significant sundial on the North American continent and surrounding islands. We have a good head start, but there are many dials yet to be recorded, and even recorded dials change over time.

You can to help by visiting sundials in your area and sending pertinent information (1) by mailing in the PDF form at the bottom, (2) by using the on-line form, or (3) by contacting This email address is being protected from spambots. You need JavaScript enabled to view it.. We need basic descriptions of dials that have reasonable public access. Go dial hunting! Visit the dials in your area or as you travel, and send us your updates and discoveries. We need your input and we like surprises!

For the first time we are able to present the COMPLETE Sundial Registry database of public dials, some of which have many interesting photos never seen before.

NASS Members and the NASS Registar thank Chi Lian who visited 112 dials in 15 states and submitted numerous, excellent photos.

Download this file (Sundial_Registratiion_Form.pdf)Sundial Registration Form[Download, Fill it In, and mail to the NASS Registrar]30 kB

For over 15 years NASS has been documenting significant sundials in North America.  From the Dominican Republic to Alaska we photograph and record interesting sundials.  We emphasize "public dials" that can be viewed by all.  Some are in parks, some on buildings or street corners.  But they all have interesting features.  Some have fascinating stories.  Discover the nearly lost sundial of Thomas Jefferson in St. Louis, MO or the stone alignments in Amherst, MA and Burlington, VT. 

All of these dials are available as part of the nearly 700 sundials incorporated into the North American Sundial Society Registry.  We encourge you to submit new sundials to the registry and to improve the existing registry by photos and current description of these dials. See the top menu tab "Dial Registry".