Sundial Societies

• Austrian Sundial Society (GSA)
• Arbeitskreis Sonnenuhren in Germany
• British Sundial Society BSS
• Site of NASS
• Dutch Sundial Society Zonnewijzerkring
• French Sundial Society SAF
• Asociación de Amigos de los Relojes de Sol AARS
• Sundial Society of Catalonia SCG
• Sundials in the Czech Republic (with catalogue of Czech sundials)

More Sundial Sites

• Sundials in Austria (GSA)
• Many LINKs to sundials
• Google Sundial Books: German und English
• Sundial Mailing List Archiv and Tips for Searching 
• The BSS Sundial Glossary, second edition
• Sundials by Wolfgang Frolik, Upper Austria
• Sundials by Johann Jindra, Lower Austria
• Sundials by Gernot Krondorfer, Upper Austria
• Sundial Site of Carlo Heller  HELIOS Präzisions-Sonnenuhren, Germany
• The Sundial Site KeplerUhr by Kurt Niel shows his huge Sundial on the south wall of his school.
• Artisan Sundials, Spectra Sundials by Jim Tallman
• The Sundial Primer by Carl Sabanski
• Sundial Site of Robic Joel
• Gnomonica by Nicola Severino, Italian
• Learn to make a Sundial

Sundial Software - Freeware

• Download here the Excel spreadsheet Sun_57 by dialist Ricardo Cernic. It shows the ephemerides of sun, the actual values of many different hour types, the Equation of Time and sunrise/-set for different years.
  Eight Languages are offered: Czech, Dutch, English, French, German, Portuguese, Spanish and Russian
• The Zonnewijzerkring offers Fer de Vries' free software for the computation of flat sundials ZW2000. Since Fer de Vries has died his software is not updated any longer.
• Software SONNE by Helmut Sonderegger calculates a big variety of sundial types on flat and cylindric planes.
• The new version 2.1 of ALEMMA by Helmut Sonderegger calculates many types of analemmatic sundials. Also of course the "classical" type on a horizontal plane with a person as the shadow casting time indicator.
• Another software (freeware) for the calculation of sundials is Orologi Solari by Gian Casalegno. Download from his web page.