Stardate
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A stardate is a fictional system of time measurement developed for the television and film series Star Trek. In the series, use of this date system is commonly heard at the beginning of a voice-over l
Ship’s chronometer
Ordinal date
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An ordinal date is a calendar date typically consisting of a year and an ordinal number, ranging between 1 and 366, representing the multiples of a day, called day of the year or ordinal day number. T
Stardate
…Trek so that the first four digits correspond to the year, while the remainder was intended to stand for the day of the year, in effect representing an ordinal date. In the first installment of the movie trilogy, Spock makes his log of the destruction of Vulcan on stardate 2258.42, or February 11, 2258. Star Trek…
Mission control center's board with time data, displaying coordinated universal time with ordinal date (without year) prepended, on October 22, 2013 (i.e.2013-295)