- Fallon Astro Graphics
Free monthly graphics and table (Rainbow Ephemeris) for the moon and planet's positions in tropical zodiac. Catalogue includes tools for astrology and an astro art gallery.
Time and Date
Lots of time and date related information, such as yearly and monthly calendars, counters, countdown, and the world clock which shows the current time in cities all over the world.
Sundial Design Program
Software to design a vertical (wall mounting) sundial for walls that face up to 60 degrees away from due-south.
Sundials on the Internet
A major information source, with projects, detailed technical information, links to related sites, listings of societies.
Sundials in the Czech Republic and Slovakia
On-line catalogue, with facilities for search, adding records, map, statistics, articles and references.
The North American Sundial Society
Includes general information, links, a register of dials in North America, and a message board.