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  • Long Now Foundation, The
    Proposes both a mechanism and a myth: a 10,000-year Clock, as a corrective to the short attention span of contemporary society.
    www.longnow.org
  • U.S. Naval Observatory - Time Service Department
    Provides the official time for the Navy, for the Department of Defense, and for the United States.
    tycho.usno.navy.mil
  • Walk Through Time, A
    The evolution of time measurement, from the National Institute of Standards and Technology.
    physics.nist.gov/GenInt/Time/time.html
  • International Standard Date and Time Notation
    Specifies numeric representations of date and time.
    www.cl.cam.ac.uk/~mgk25/iso-time.html
  • Compute Local Apparent Sidereal Time
    An online form. Astronomers use local sidereal time because it corresponds to the coordinate right ascension of a celestial body that is presently on the local meridian.
    tycho.usno.navy.mil/sidereal.html
  • What Time Is It In Indiana?
    Learn about the three different time arrangements in the Hoosier State.
    www.mccsc.edu/time.html
  • Wolfram Research: Time
    Provides descriptions of several standards of time.
    scienceworld.wolfram.com/astronomy/Time.html
  • Times of Our Lives
    The study of time and the various timetables and rhythms that shape our behaviors and thoughts.
    www.trinity.edu/~mkearl/time.html
  • National Institute of Standards and Technology - Time and Frequency Division
    Maintains the standard for frequency and time interval for the United States though the NIST-F1 Cesium Fountain Atomic Clock.
    www.boulder.nist.gov/timefreq
  • International Date Line (3)
    dir.yahoo.com/.../Time/International_Date_Line
  • The Engineering Purpose: From Water Clocks to Cybernetics (PDF)
    Traces the concept of feedback-control in timekeeping from ancient to modern times. In pdf format.
    faculty.ed.uiuc.edu/g-cziko/twd/pdf/twd05.pdf
  • On Time
    The Smithsonian explores the changing ways Americans have measured, used, and thought about time.
    americanhistory.si.edu/ontime
  • Mystical World Wide Web Time Grid
    Facts and history about time and clocks, and folklore of the days of the year, months, and seasons.
    www.mystical-www.co.uk/time
  • Enquirerworld.com
    Information on measurements of time that includes time standards, zones, scales, calendar systems, and horology.
    www.enquirerworld.com
  • Time Pages, The
    Essay about the author's personal interest in time and a discussion of humanity's relationship to time. Also includes time quotes, time in fiction, conversion, and other information.
    www.mienet.com/time
  • Online Stopwatch
    Provides a collection of timers and countdowns.
    www.online-stopwatch.com
  • Online Timer
    Web-based timer.
    timer.onlineclock.net
 


Measurements and Units > Time


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