The inaugural World Sundial Day Online Conference took place on 20 March 2025 with more than 80 participants being present.
Recordings of the presentations
Martins Gills. Welcome to the conference
Frank King. Welcome from the British Sundial Society
Esteban Martínez Almirón. Why a World Sundial Day?
Roger Torrenti. Why a MOOC and a magazine on sundials?
David Harber. A fleeting encounter with an old Armillary Sphere, and the rest is history. 30 years of sundial making.
Monika Lübker. Experience from creating new sundials in Birkenau
Robert Adzema. Today’s sundial: the need for and design of
François Blateyron. Latest features of Shadows Pro, for designing sundials
Giuseppe De Donà. The evolution of astronomy with Camera Obscura sundials
Kurt Niel. A huge sundial supporting a worldwide online project
Evan Boxer-Cook. Take Time to Nodus Sundials
Jeffrey Kaiser. A path to sundials
Niklas Hietala. Lauri Anttila’s unconventional sun dials in Helsinki
Woody Sullivan. The world’s first working sundial tattoo
Abut the World Sundial Day
The proposal of World Sundial Day was originally made by Esteban Martínez Almirón on website Reloj Andalusí. It is proposed to celebrate the World Sundial Day on the March Equinox, the day of the year on which the shadow in sundials casts a straight line on a plane and the day has a duration approximately equal to the one at night. The idea of WSD is supported by many individuals and organizations. You can sign a petition on Change.org.
Contact
e-mail: info@tempus-sol.eu , host of the conference – Martins Gills