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Time, Clocks, and Calendars

Time Management

This is a resource page devoted to understanding our historical quest to better manage our time by keeping track of it and knowing what the current time is.


timeTimeandDate.com has a variety of information that is time and date related, such as yearly and monthly calendars, counters, countdown, and a world clock which shows the current time in cities all over the world.



timeThis online age calculator figures out your age in years, months, days, hours, minutes. Find out how may days, months, or years that have passed since your time of birth.  Also, calculate how many days are left for your next birthday.

Online Age Calculator



Time and date trivia has some useful time and date facts that are bound to make you the star of your next party!

Time and Date Trivia


Find out about the evolution of time measurement through the ages from Stonehenge to atomic clocks.

National Institute of Standards and Technology – A Walk Through Time


timeWhat’s the history of wristwatches? How do they evolve? How does a self-winding watch work? What’s inside them? How does a quartz watch work?

The History of Watches and How They Work


timeWhy is Clock Time so Important? The On Time Exhibit at the Smithsonian’s National Museum of American History explores the changing ways we’ve measured, used, and thought about time over the past three hundred years. Learn how America has learned to live by the clock.

On Time Exhibit at the Smithsonian’s  National Museum of American History


timeWhen is a minute not a minute? Does the length of a minute seem shorter when you’re late for class as opposed to when you are listening to a lecture? Does time fly when you’re having fun? Learn more about time by visiting the online time exhibit of the Chicago Museum of Science and Industry.

Museum of Science and Industry Time Exhibit


The National Watch and Clock Museum. America’s largest timekeeping collection.

Clock Museum


Calendars used throughout the world

Calendars Thru The Ages