Useful time websites around the WWW...

Royal Observatory Greenwich

The Royal Observatory Greenwich has a large number of Information Leaflets on Time & Astronomy packed full of useful information.

Hong Kong Observatory  - Hong Kong

The "Royal Observatory" was re-named on 1 July 1997.

Time and Frequency Division An operating unit of the Physics Laboratory of the National Institute of Standards and Technology (NIST). Based in Boulder, Colorado the site has many facts and information about time...

Other useful websites
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Time

• Times from around the World

• Stan's Workshop - full of watches and clocks

• The Time Zone Forum - buy or sell a watch over the Internet

• Horology - The Index

• British Horological Institute - packed full of materials and links

• Standard Time Zones of the World (large file)

Sundials

• Sundials to buy

• Sundial pendants have been worn on clothing for thousands of years to tell the time

• Photographs of sundials in The Netherlands (Holland)

• The sundial trial at the Horniman Museum in London, England from the UK Sundial site

• The North America Sundial Society

Sunrise and Sunset

• Sunrise, Sunset and Twilight Times Computation for anywhere in the world

• Sun or Moon Rise/Set Table for One Year from US Naval Observatory

• Sun and Moon Data for One Day from US Naval Observatory

Local Time

• Check your computer's time against US Navy Master Clock (takes a few seconds to calculate - be patient)

• Compute Local Apparent Sidereal Time that is the actual time for your spot on the globe in relation to Greenwich. Outside the USA you will have to know your longitude (that's the East, West one!) Greenwich is at zero degrees Prime Meridian of the World.

Calendars

• This months calendar (or any month)

Clocks and Watches

• Zany clocks from Whiterook Products Company with binary clocks and roman clocks !!!

• Pattens Clockmakers of Hadleigh, Essex