Sites

Time and Dates - English
URL: http://www.circ.uab.edu/nypldr/1time/index.htm

Cognitive information on date, time, and time zones from the New York Public Library.

[ rus | eng ]

A Walk Through Time - English
URL: http://physics.nist.gov/genint/time/time.html

The history of timekeeping from acient calendars to NIST time calibration

[ eng ]

Islamic Calendar - English
URL: http://www.ummah.net/ildl/

Islamic months begin at sunset on the day of visual sighting of the lunar crescent. How can we define this moment?

[ rus | eng ]

A Calendar for Mars - English
URL: http://www.drfast.net/mars/Zubrin.html

Mars needs a calendar - using Earth dates just won't do. If I tell you it is February 1, you know that it is freezing in Minneapolis, but what does it tell you about conditions on Mars? Article by Dr. Robert Zubrin.

[ eng ]

Astroplus - French
URL: http://perso.club-internet.fr/gibouin/index.html

L'astronomie: l'histoire et les actualités. Un dossier de système solaire, les constellations, une page consacrée aux différents épisodes de l'exploration spatiale. L'information sur des recherches d'une vie extraterrestre: témoignages et hypothèses. Le temps: les différents calendriers, historique des instruments permettant de calculer le temps, problème de la date du nouveau millénaire.

[ fra ]