A Walk Through Time – the evolution of time measurement
Compute Sunrise, Sunset Worldwide – site calculates sunrise, sunset for anywhere in the world, on any date. Daily Almanac – Who was born and what happened on any given day. Daylight Saving Time, Its History and Why We Use It – information on why we save daylight, the history of Daylight Savings Time, and when it starts and stops each year between 1990 and 2004. Horology – The science of time, timekeepers (watches, clocks) and timekeeping.
How Radio-Controlled Clocks Work – You have probably seen or own a radio-controlled clock. This site explains how these clocks work.
NIST Time and Frequency Division Hompage – develops and operates standards of time and frequency
Official U.S. Time – National Institute of Standards and Technology.
Sun and Moon Data for One Day – obtain the times of sunrise, sunset, moonrise, moonset, transits of the Sun and Moon, and the beginning and end of civil twilight, along with information on the Moon’s phase.
TimeTicker – shows the exact time for every place on earth; shockwave plugin must be installed.
World Clock, The – Automatically updated every minute
Worldtime – interactive world atlas, providing information on local time and public holidays for all countries.
World Time Zone – local time in every country in the world; each local time is fully adjusted for their own specific daylight savings time