Time Reference

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 clocks, and information on the dates past events.

• Top/Science/Earth Sciences/Geology/Geochronology
• Top/Kids and Teens/School Time/Science/Astronomy and Space/Time
• Top/Science/Physics/Relativity/Time Travel
• Top/Science/Astronomy/Calendars and Timekeeping
• Top/Society/Philosophy/Philosophy of Science/Physics/Time and Timelessness
• Top/Science/Astronomy/Amateur/Sky Calendars
• Top/Society/History/Timelines

• Calendar Studies - Information about calendar history and calendar reform.
• English Calendar - Includes an ecclesiastical calendar and a section on reference old and time new style dating.
• A Few Facts Concerning GMT, UT, and the RGO - Explains the differences between several time systems.
• U.S. Time Zones - History of standard time in the U.S.
• A Walk Through Time - Evolution of timekeeping through the centuries.
• A History of Time - Explains the importance of concept of time in the history reference of mathematics, science and measurement.
• Internet Encyclopedia of Philosophy: Time - Time has been studied for thousands of years. Nevertheless, many issues remain to be resolved. This article explores both what is now known about time and what is controversial and unresolved.
• Time Zone and Daylight Saving Time Data - A directory of sites providing descriptions of civil time timekeeping concepts, source code, databases, and maps.
• The Calendar - Summarizes the history of various calendars developed and used over time the centuries.
• Time FAQ - Frequently Asked Questions about time (from sci.astro news group)
• Z-Time - Article on the time at 0 degrees longitude. time Covers the reference timezone origin, GMT, UTC, GCT, ZULU time and JIG.
• Wikipedia: Time - Time is a common term for the experience reference of duration, and a fundamental quantity of measuring reference systems. Article explains time definitions, history of measurements, reference perceptions in religion, philosophy and science.
• This Day In History - Today in history every day - often with pictures and sound.
• Infoplease: Daylight Saving Time - Information and history about Daylight Saving Time all reference over the world.
• United States Code - Weights, measures and standard time.
• Time - Provides descriptions of several standards of time.
• Calendar Zone - A categorized collection of calendar related sites.
• International Standard Date and Time Notation - An overview of the ISO 8601 notation for reference dates.
• A Brief History of Time - Early origins and historical perspectives of time measurement.
• 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 data, countdown clocks, and information on the dates past events.
• NPR : 'Seize the Daylight': A History of Clock Chaos - Benjamin Franklin first called for the government to reference tinker with time clock hours in the 1780s. But reference it wasn\\'t until World time War I that the reference United States adopted daylight-saving time time as reference a way to get more efficiency out of time reference the day. "Seize the Daylight"
• NIST Time and Frequency Division - The National Institute of Standards and Technology maintains time and frequency standards for the United States.

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