Time
A Few Facts Concerning GMT, UT, and the RGO
Explains the differences between several time systems.
Atomic Clock Time
Displayed in a variety of useful formats. Site is a front-end to U.S. government atomic clocks.
Date Algorithms
Provides descriptions, proofs and computer programming implementation examples to convert dates to various calendar dates for Julian, Gregorian, and Rata Die calendars.
English Calendar
Includes an ecclesiastical calendar and a section on old and new style dating.
Infoplease: Daylight Saving Time
Information and history about Daylight Saving Time all over the world.
International Standard Date and Time Notation
An overview of the ISO 8601 notation for dates.
Light of Day
Shedding light on Queensland's daylight saving opposition.
NIST Time and Frequency Division
The National Institute of Standards and Technology maintains time and frequency standards for the United States.
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 …
The Calendar
Summarizes the history of various calendars developed and used over the centuries.
Time References
To set your watch or clock accurately using a time reference. Explains the various options for residents of North America.
Time Zone and Daylight Saving Time Data
A directory of sites providing descriptions of civil timekeeping concepts, source code, databases, and maps.
Today's Calendar and Clock Page
Information on all things relating to calendars, dates, holidays, and time. Find today's date on several different cultural and religious calendars. Includes section on Celestial …
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