Time Reference

@Intermall

Top: Reference: Time:

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

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