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A Brief History of Time
Early origins and historical perspectives of time measurement.
http://www.perseus.tufts.edu/GreekScience/Students/Chris/TIME2.html
The Calendar
Summarizes the history of various calendars developed and used over the centuries.
http://www.skeptics.com.au/journal/calendar.htm
Calendar Studies
Information about calendar history and calendar reform.
http://www.hermetic.ch/cal_stud.htm
Calendar Zone
A categorized collection of calendar related sites.
http://www.calendarzone.com/
English Calendar
Includes an ecclesiastical calendar and a section on old and new style dating.
http://www.albion.edu/english/calendar/
A Few Facts Concerning GMT, UT, and the RGO
Explains the differences between several time systems.
http://www.apparent-wind.com/gmt-explained.html
A History of Time
Explains the importance of concept of time in the history of mathematics, science and measurement.
http://www-history.mcs.st-andrews.ac.uk/HistTopics/Time_1.html
Infoplease: Daylight Saving Time
Information and history about Daylight Saving Time all over the world.
http://www.infoplease.com/spot/daylight1.html
International Standard Date and Time Notation
An overview of the ISO 8601 notation for dates.
http://www.cl.cam.ac.uk/~mgk25/iso-time.html
Internet Encyclopedia of Philosophy: Time
Time has been studied for thousands of years. Nevertheless, many issues remain to be resolved. This article explores both what is now known about time and what is controversial and unresolved.
http://www.iep.utm.edu/t/time.htm
NIST Time and Frequency Division
The National Institute of Standards and Technology maintains time and frequency standards for the United States.
http://tf.nist.gov/
NPR : 'Seize the Daylight': A History of Clock Chaos
Benjamin Franklin first called for the government to tinker with clock hours in the 1780s. But it wasn't until World War I that the United States adopted daylight-saving time as a way to get more efficiency out of the day. "Seize the Daylight" Author David Prerau talks about the complicated politics and curious history of DST, and he shares an excerpt from his book. [4:54 streaming audio broadcast]
http://www.npr.org/templates/story/story.php?storyId=4572036
This Day In History
Today in history every day - often with pictures and sound.
http://www.history.com/this-day-in-history.do
Time
Provides descriptions of several standards of time.
http://scienceworld.wolfram.com/astronomy/Time.html
Time FAQ
Frequently Asked Questions about time (from sci.astro news group)
http://www.faqs.org/faqs/astronomy/faq/part3/
Time Zone and Daylight Saving Time Data
A directory of sites providing descriptions of civil timekeeping concepts, source code, databases, and maps.
http://www.twinsun.com/tz/tz-link.htm
Today's Calendar and Clock Page
Information on all things relating to calendars, dates, holidays, and time. Find today's date on several different cultural and religious calendars. Includes section on Celestial data, countdown clocks, and information on the dates past events.
http://www.ecben.net/calendar.shtml
United States Code
Weights, measures and standard time.
http://tycho.usno.navy.mil/260.html
U.S. Time Zones
History of standard time in the U.S.
http://aa.usno.navy.mil/faq/docs/us_tzones
A Walk Through Time
Evolution of timekeeping through the centuries.
http://physics.nist.gov/GenInt/Time/time.html
Wikipedia: Time
Time is a common term for the experience of duration, and a fundamental quantity of measuring systems. Article explains time definitions, history of measurements, perceptions in religion, philosophy and science.
http://en.wikipedia.org/wiki/Time
Z-Time
Article on the time at 0 degrees longitude. Covers the timezone origin, GMT, UTC, GCT, ZULU and JIG.
http://www.maybeck.com/ztime/
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