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Katolog > Kids and Teens > School Time > Science > Astronomy and Space > Time

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Links:

Daylight Saving Time
http://www.mrdowling.com/601-daylight.html

Daylight Saving Time

Why do we use daylight savings time and who invented it?
www.mrdowling.com/601-daylight.html
Local Times Around the World
http://www.timeanddate.com/worldclock/

Local Times Around the World

Find out what time it is anywhere in the world.
www.timeanddate.com/worldclock
International Standard Date and Time Notation
http://www.cl.cam.ac.uk/~mgk25/iso-time.html

International Standard Date and Time Notation

International Standard ISO 8601 specifies numeric representations of date and time. It helps to avoid confusion caused by the many different national notations.
www.cl.cam.ac.uk/~mgk25/iso-time.html
Latitude and Longitude
http://www-spof.gsfc.nasa.gov/stargaze/Slatlong.htm

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.
www-spof.gsfc.nasa.gov/stargaze/Slatlong.htm
Make Your Own Star Clock
http://www.lhs.berkeley.edu/StarClock/starclockprintout.html

Make Your Own Star Clock

Learn how to tell time by finding constellations in the night sky.
www.lhs.berkeley.edu/StarClock/starclockprintout.html
Making a Sun Clock
http://www.exploratorium.edu/science_explorer/sunclock.html

Making a Sun Clock

Before there were clocks, people used shadows to tell time. Learn how to make your own sun clock!
www.exploratorium.edu/science_explorer/sunclock.html
Making a Horizontal Sundial
http://www.lmsal.com/YPOP/Classroom/Lessons/Sundials/sundials.html

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.
www.lmsal.com/YPOP/Classroom/Lessons/Sundials/sundials.html
Time
http://www.mrdowling.com/601-time.html

Time

Just how do we measure time and what has Greenwich England got to do with it?
www.mrdowling.com/601-time.html
Time Travel
http://www.pbs.org/wgbh/nova/time/

Time Travel

Is time travel possible? See what Carl Sagan and Einstein had to say about time travel in this NOVA special.
www.pbs.org/wgbh/nova/time
A Walk Through Time
http://physics.nist.gov/GenInt/Time/time.html

A Walk Through Time

An illustrated history of timekeeping from ancient times to the present.
physics.nist.gov/GenInt/Time/time.html
What Time is it!
http://www.whattimeisit.com/

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.
www.whattimeisit.com
World Time Converter
http://www.gkindia.com/bitsol_time/

World Time Converter

Provides online times converter and brief information about GMT/UTC.
www.gkindia.com/bitsol_time
NPR : 'Seize the Daylight': A History of Clock Chaos
http://www.npr.org/templates/story/story.php?storyId=4572036

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 Da
www.npr.org/templates/story/story.php?storyId=4572036
Countdown
http://www.spiders.com/portfolio/demos/countdown/

Countdown

Calculate the exact time in days, hours, minutes and seconds from now until your birthday or any other event.
www.spiders.com/portfolio/demos/countdown

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