epoch date

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• Epoch (reference date) — In the fields of chronology and periodization, an epoch means an instant in time chosen as the origin of a particular era. The epoch then serves as a reference point from which time is measured. Time measurement units are counted from the epoch… …   Wikipedia

• date (Unix) — Unix date command The Unix date command displays the time and date. The super user can use it to set the system clock. Contents 1 Usage 2 Formatting …   Wikipedia

• Epoch — PeriodizationIn periodization, epoch can refer to:* Epoch (reference date) A defining moment in the beginning of, or characteristic of, a distinctive historical period or era. * On the geologic time scale, a span of time smaller than a period and …   Wikipedia

• Epoch — Ep och ([e^]p [o^]k or [=e] p[o^]k; 277), n. [LL. epocha, Gr. epochh check, stop, an epoch of a star, an historical epoch, fr. epe chein to hold on, check; epi upon + e chein to have, hold; akin to Skr. sah to overpower, Goth. sigis victory, AS.… …   The Collaborative International Dictionary of English

• epoch — [ep′ək; ] also [ ep′äk΄; ] Cdn & Brit usually [ ē′päk΄] n. [ML epocha < Gr epochē, a check, cessation < epechein, to hold in, check < epi , upon + echein, to hold: see SCHEME] 1. the beginning of a new and important period in the history …   English World dictionary

• Date — Date, n. [F. date, LL. data, fr. L. datus given, p. p. of dare to give; akin to Gr. ?, OSlaw. dati, Skr. d[=a]. Cf. {Datum}, Dose, {Dato}, {Die}.] 1. That addition to a writing, inscription, coin, etc., which specifies the time (as day, month,… …   The Collaborative International Dictionary of English

• date — [n1] point in time; particular day or time age, century, course, day, duration, epoch, era, generation, hour, juncture, moment, period, quarter, reign, span, spell, stage, term, time, while, year; concepts 800,801,802,815 date [n2] social… …   New thesaurus

• epoch — [n] period age, date, era, span, time; concepts 807,822 …   New thesaurus

• Epoch (astronomy) — In astronomy, an epoch is a moment in time used as a reference for the orbital elements of a celestial body. [cite book|last=Soop|first=E. M.|title=Handbook of Geostationary Orbits|publisher=Springer|date=1994|isbn=9780792330547] Typically, the… …   Wikipedia

• epoch — /ep euhk/ or, esp. Brit., /ee pok/, n. 1. a particular period of time marked by distinctive features, events, etc.: The treaty ushered in an epoch of peace and good will. 2. the beginning of a distinctive period in the history of anything: The… …   Universalium

• Epoch — Pour les articles homonymes, voir Epoch (homonymie). L epoch (de l anglais époque ou ère) représente la date initiale à partir de laquelle est mesuré le temps par les systèmes d exploitation. Principe Cette date varie selon les systèmes, par… …   Wikipédia en Français