Explains the differences between several time systems. - Read more
Evolution of timekeeping through the centuries. - Read more
Displayed in a variety of useful formats. Site is a front-end to U.S. government atomic clocks. - Read more
Information about calendar history and calendar reform. - Read more
A categorized collection of calendar related sites. - Read more
The history of the western calendar and the clock. - Read more
Provides descriptions, proofs and computer programming implementation examples to convert dates to various calendar dates for Julian, Gregorian, and Rata Die calendars. - Read more
Includes an ecclesiastical calendar and a section on old and new style dating. - Read more
Information and history about Daylight Saving Time all over the world. - Read more
An overview of the ISO 8601 notation for dates. - Read more
Shedding light on Queensland's daylight saving opposition. - Read more
The National Institute of Standards and Technology maintains time and frequency standards for the United States. - Read more
Summarizes the history of various calendars developed and used over the centuries. - Read more
Today in history every day - often with pictures and sound. - Read more
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 - Read more
To set your watch or clock accurately using a time reference. Explains the various options for residents of North America. - Read more
A directory of sites providing descriptions of civil timekeeping concepts, source code, databases, and maps. - Read more
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 data, countdown - Read more
History of standard time in the U.S. - Read more
Weights, measures and standard time. - Read more
