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Daylight Saving Time
Why do we use daylight savings time and who invented it?
http://www.mrdowling.com/601-daylight.html
World Time Converter
Provides online times converter and brief information about GMT/UTC.
http://www.gkindia.com/bitsol_time/
Making a Horizontal Sundial
Learn how to make a sundial. Instructions are for beginners, intermediate, or advanced, and work for either the northern or southern hemispheres.
http://www.lmsal.com/YPOP/Classroom/Lesson...
Make Your Own Star Clock
Learn how to tell time by finding constellations in the night sky.
http://www.lhs.berkeley.edu/StarClock/star...
International Standard Date and Time Notation
An overview of the ISO 8601 notation for dates.
http://www.cl.cam.ac.uk/~mgk25/iso-time.ht...
Making a Sun Clock
Before there were clocks, people used shadows to tell time. Learn how to make your own sun clock!
http://www.exploratorium.edu/science_explo...
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.p...
When Does Daylight Savings Time Occur
Explaination of when and why we have daylight savings time.
http://www.logan.ws/articles/when_does_day...
Time and Date
Current time in tables of places in the world. Can be sorted and otherwise customized. Includes meeting planner and other time-related tools.
http://www.timeanddate.com/worldclock/
Time
Just how do we measure time and what has Greenwich England got to do with it?
http://www.mrdowling.com/601-time.html
Smithsonian Institute - On Time
History of the clock and how Americans have measured time and been affected by it.
http://americanhistory.si.edu/ontime/
Latitude and Longitude
Introduction to latitude and longitude, a way of calculating exactly where you are anyplace on earth and a way to tell time.
http://www-spof.gsfc.nasa.gov/stargaze/Sla...
What Time is It
Gives the current time, synchronized by NIST. Close to 100 different time zones supported, as well as the ability to select the default time zone.
http://www.whattimeisit.com/
Time Travel
Is time travel possible? See what Carl Sagan and Einstein had to say about time travel in this NOVA special.
http://www.pbs.org/wgbh/nova/time/
Countdown
Calculate the exact time in days, hours, minutes and seconds from now until your birthday or any other event.
http://www.spiders.com/portfolio/demos/cou...
A Walk Through Time
Evolution of timekeeping through the centuries.
http://physics.nist.gov/GenInt/Time/time.h...
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2006