HEATKEYS

The official U.S. time. Public service cooperatively provided by the two time agencies of United States: a civilian agency, the National Institute of Standards and Technology (NIST), and its military counterpart, the U. S. Naval Observatory (USNO). A...

The Master Clock for the United States.

This site includes lots of information that is time and date related, such as yearly and monthly calendars, countdown counters and the world clock which shows current time in cities all over the world.

World Time Server shows current local time in cities and countries in all time zones, adjusted for Daylight Saving Time rules automatically. Even check current international weather conditions.

Get in-depth coverage of current and future trends in technology, and how they are shaping business, entertainment, communications, science, politics, and culture at Wired.com.

Physics, astronomy and science news, community, education and reference. Job board, directories, forums, chat, education reference, fun and more.

Family owned since 1919, Lathem is a leading provider of time clocks, automated time and attendance systems, wall clocks and access control for business.

Atomic Time has a wide variety of atomic clocks and atomic watches which use a built in receiver that synchronizes them with the official U.S. time via the atomic clock in Fort Collins, Colorado.

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HowStuffWorks Science has explanations and colorful illustrations related to earth science, life science, and other wonders of the physical world.

The home page of AtomTime -- AtomTime is a shareware program that will synchronize your PC clock with the atomic clock server in Boulder, Colorado.