Epoch

From Wikipedia, the free encyclopedia

Depending on context, epoch can refer to:

[edit] Period of time

• a distinctive historical period or era
• a unit of the geologic time scale, less than a period and greater than an age
• a phase in the development of the universe with distinctive properties

Contents 1 Period of time 2 Moment in time 3 Proper noun 4 Other

[edit] Moment in time

• epoch (reference date) - a significant event, time, or moment which is chosen as a new origin for time measurements, usually as the delimiting factor of an era.

• January 1, 1970 is called the epoch in Linux and BSD in this sense. See Unix time.

• epoch (astronomy) - a precise moment in time for which celestial coordinates or orbital elements are specified

[edit] Proper noun

• Epoch (magazine), the literary magazine of Cornell University.
• Epoch (Age of Conan), a guild in Age of Conan's Aquilonia EU server.
• Ha-Tsefirah (lit. Epoch), a Hebrew language newspaper published in 1862 and 1874-1931.
• Epoch (film), a science fiction film directed by Matt Codd
• Epoch Game Pocket Computer, an early hand-held game console
• Epoch Co., the maker of the above and other computer games
• Epoch (Chrono Trigger), a flying time machine in role-playing game Chrono Trigger
• Epoch (DC Comics), a supervillain also known as the Lord of Time
• Epoch (Marvel Comics), a cosmic entity in the Marvel Comics universe.
• Epoch Hunter (World of Warcraft), a boss in World of Warcraft's Caverns of Time; Old Hillsbrad Foothills.
• The Epoch Times, a privately owned Falun Gong-linked newspaper
• Epoch Javascript Calendar is an open source, GPL calendar component for use in web pages written in JavaScript.
• Epoch operating system was a European research project in the 1990s to build an operating system based on the ChorusOS operating system kernel.

[edit] Other

• a step in the training process of an artificial neural network