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:'''''Day''' redirects here. For the Bajoran Field Colonel, see [[Day Kannu]].'' |
:'''''Day''' redirects here. For the Bajoran Field Colonel, see [[Day Kannu]].'' |
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==Year== |
==Year== |
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− | A '''year''' |
+ | A '''year''' was the amount of time it took for a [[planet]] to [[orbit]] its [[sun]]. If the planet had an axial tilt, this resulted in seasons, like [[winter]], [[spring]], [[summer]], and [[fall]]. |
− | + | {{bginfo|'''Vulcan year:''' In [[Gene Roddenberry]]'s novelization of ''{{dis|Star Trek: The Motion Picture|novel|The Motion Picture}}'' he indicated that nine Vulcan seasons were equal to 2.8 Earth years. This would make Vulcan's year 456 ± 33 Earth days long.}} |
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+ | |||
+ | ===Standard UFP Solar year=== |
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+ | Standard [[Federation|UFP]] solar years were mentioned in the [[treaty of Armens]]. ({{TNG|The Ensigns of Command}}, ''[[okudagram]]'') |
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===Earth year=== |
===Earth year=== |
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+ | {{pna-cite}} |
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− | One Earth year |
+ | One Earth year was equal to 365.2425 Earth days in the {{w|Gregorian calendar}}. To compensate for the fraction of a day, a leap day was added to every year whose number was divisible by four, unless it was a century, unless it was divisible by 400. These leap years consisted of adding an extra day to the month of [[February]]. Instead of the usual 28 days, there would be 29. |
− | Scientists usually |
+ | Scientists usually used a {{w|Julian year (astronomy)|Julian year}} of 365.25 days for measurements and scientific comparisons. |
− | The {{w|Tropical year|mean solar year}} was 365.242190419 days in 2000 AD, and will be shorter still by the 23rd century. |
+ | {{bginfo|The {{w|Tropical year|mean solar year}} was 365.242190419 days in 2000 AD, and will be shorter still by the 23rd century.}} |
+ | ===External link=== |
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− | + | * {{wikipedia|Year}} |
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==Month== |
==Month== |
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− | A '''month''' |
+ | A '''month''' was usually the amount of time it took for a moon to orbit its planet. This was usually a portion of a year, and a large number of days (in which case it may be broken down into weeks). |
+ | |||
− | + | {{bginfo|On planets without moons, a month could either A) not exist, B) be equal to a season, or C) be a fractional division of a season. For example, [[Vulcan (planet)|Vulcan]] "has no moon", so it is unknown what portion of a year is represented by the "month" of [[Tasmeen]]. The novelization of ''{{dis|Star Trek: The Motion Picture|novel|The Motion Picture}}'' could be read to imply that Vulcan's "months" are whole seasons.}} |
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On [[Earth]] a month was originally the length of the lunar cycle (29.53 days). Most calendars at some point made the month one twelfth of a solar year (30.44 days). In Earth's most common calendar, the months are either 30 or 31 days long, with one shorter month ([[February]]) having 28 or 29 days depending on the year. |
On [[Earth]] a month was originally the length of the lunar cycle (29.53 days). Most calendars at some point made the month one twelfth of a solar year (30.44 days). In Earth's most common calendar, the months are either 30 or 31 days long, with one shorter month ([[February]]) having 28 or 29 days depending on the year. |
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{{Months of the year}} |
{{Months of the year}} |
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+ | ===External link=== |
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− | + | * {{wikipedia|Month}} |
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==Week== |
==Week== |
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− | A '''week''' |
+ | A '''week''' was small number days grouped together as part of a calendar system. It could be a portion of a month or an unrelated grouping. |
− | On Earth a week |
+ | On Earth a week was seven days. |
− | + | {{bginfo|Seven days was a close approximation to one fourth of a lunar month. When months became one twelfth of a solar year the connection was broken, and one month was now about 4.35 weeks long.}} |
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{{Days of the week}} |
{{Days of the week}} |
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+ | ===External link=== |
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− | + | * {{wikipedia|Week}} |
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==Day== |
==Day== |
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− | A '''day''' |
+ | A '''day''' was the amount of time it takes for a planet to spin once on it own axis. This resulted in a day/[[night]] cycle (with day in this second case meaning the sunlit portion of the full day). |
− | On Earth a full day |
+ | On Earth, a full day was divided up into 24 hours, whereas on Bajor, a full day was divided into 26 Hours. |
+ | ===Standard UFP Solar Day=== |
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⚫ | |||
+ | Standard [[Federation|UFP]] solar days were mentioned in the [[treaty of Armens]]. ({{TNG|The Ensigns of Command}}, ''[[okudagram]]'') |
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+ | |||
+ | ===External link=== |
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⚫ | |||
==Hour== |
==Hour== |
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− | An '''hour''' |
+ | An '''hour''' was a portion of a day, this could be a decimal tenth of a day, or some other fractional portion of a day. |
− | On Earth an hour |
+ | On Earth an hour was an {{w|SI}} unit of [[time]] that was approximately 1/24 of a day, and was divided up into 60 minutes. |
− | + | {{bginfo|Though never fully explained on screen, Deep Space Nine Episodes continue to refer to days in 26 hour cycles. This might mean that there are 26 hours in a Bajoran Day.}} |
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+ | ===External link=== |
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− | + | * {{wikipedia|Hour}} |
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==Minute== |
==Minute== |
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− | A '''minute''' |
+ | A '''minute''' was a portion of an hour, this could be a decimal hundredth of an hour, or some other fractional portion of an hour. |
− | On Earth a minute |
+ | On Earth a minute was 1/60 of an hour, and was divided up into 60 seconds. |
In colloquial speech, a minute can also mean an undefined short amount of time, as in "''I'll be just a minute''". |
In colloquial speech, a minute can also mean an undefined short amount of time, as in "''I'll be just a minute''". |
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+ | ===External link=== |
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− | + | * {{wikipedia|Minute}} |
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==Second== |
==Second== |
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− | A '''second''' |
+ | A '''second''' was a portion of a minute, this could be a decimal hundredth of a minute, or some other fractional portion of a minute. |
+ | |||
⚫ | |||
+ | |||
⚫ | |||
+ | |||
+ | ===External link=== |
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⚫ | |||
+ | |||
+ | ===Nanosecond=== |
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+ | A '''nanosecond''' was one billionth of a second. |
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+ | In [[2365]], the {{USS|Yamato}} was destroyed by a plasma vent that lasted T+2.25 nanoseconds. ({{TNG|Contagion}}) |
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⚫ | |||
⚫ | |||
+ | To attract the attention of the [[Crystalline Entity]], the {{USS|Enterprise|NCC-1701-D|-D}} emitted five-nanosecond [[graviton emission]]s at one pulse per second. ({{TNG|Silicon Avatar}}) |
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⚫ | |||
+ | ===External link=== |
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+ | * {{wikipedia|Nanosecond}} |
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==Stardate== |
==Stardate== |
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'''Main article:''' [[Stardate]] |
'''Main article:''' [[Stardate]] |
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− | In the 23rd century, stardates were not directly related to Earth's calendar. |
+ | In the 23rd century, stardates were not directly related to Earth's calendar. Beginning in 2323, stardates were changed to be 1,000 per Earth year, . |
− | : ''It is unknown exactly how many days are equal to 1,000 stardates in the 24 century; it could be 365.25, 365.2425, or just 365.'' |
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+ | {{bginfo|The measurement of 1,000 stardate units per year was never explicitly stated on-screen, but can be inferred from numerous conversations. There are some apparent errors, or variations, however, in stardate calculation. One example is [[Seven of Nine|Annika Hansen]]'s birth date being given as stardate 25479, and the year being given as 2350. If that is counted back, it would give the beginning year of 24th century stardates as 2325, which contradicts the ''[[Star Trek Chronology]]''.|It is unknown exactly how many days are equal to 1,000 stardate units in the 24th century; it could be 365.25, 365.2425, or just 365.}} |
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[[Category:Time]] |
[[Category:Time]] |
Revision as of 15:51, 1 September 2015
- Day redirects here. For the Bajoran Field Colonel, see Day Kannu.
Year
A year was the amount of time it took for a planet to orbit its sun. If the planet had an axial tilt, this resulted in seasons, like winter, spring, summer, and fall.
Standard UFP Solar year
Standard UFP solar years were mentioned in the treaty of Armens. (TNG: "The Ensigns of Command", okudagram)
Earth year
One Earth year was equal to 365.2425 Earth days in the Gregorian calendar. To compensate for the fraction of a day, a leap day was added to every year whose number was divisible by four, unless it was a century, unless it was divisible by 400. These leap years consisted of adding an extra day to the month of February. Instead of the usual 28 days, there would be 29.
Scientists usually used a Julian year of 365.25 days for measurements and scientific comparisons.
External link
Month
A month was usually the amount of time it took for a moon to orbit its planet. This was usually a portion of a year, and a large number of days (in which case it may be broken down into weeks).
On Earth a month was originally the length of the lunar cycle (29.53 days). Most calendars at some point made the month one twelfth of a solar year (30.44 days). In Earth's most common calendar, the months are either 30 or 31 days long, with one shorter month (February) having 28 or 29 days depending on the year.
Months of the year |
---|
Earth months: January • February • March • April • May • June • July • August • September • October • November • December |
Qo'noS months: Maktag • nay'Poq |
Vulcan months: Tasmeen |
External link
Week
A week was small number days grouped together as part of a calendar system. It could be a portion of a month or an unrelated grouping.
On Earth a week was seven days.
The days of the Human week |
---|
Sunday • Monday • Tuesday • Wednesday • Thursday • Friday • Saturday |
External link
Day
A day was the amount of time it takes for a planet to spin once on it own axis. This resulted in a day/night cycle (with day in this second case meaning the sunlit portion of the full day).
On Earth, a full day was divided up into 24 hours, whereas on Bajor, a full day was divided into 26 Hours.
Standard UFP Solar Day
Standard UFP solar days were mentioned in the treaty of Armens. (TNG: "The Ensigns of Command", okudagram)
External link
Hour
An hour was a portion of a day, this could be a decimal tenth of a day, or some other fractional portion of a day.
On Earth an hour was an SI unit of time that was approximately 1/24 of a day, and was divided up into 60 minutes.
External link
Minute
A minute was a portion of an hour, this could be a decimal hundredth of an hour, or some other fractional portion of an hour.
On Earth a minute was 1/60 of an hour, and was divided up into 60 seconds.
In colloquial speech, a minute can also mean an undefined short amount of time, as in "I'll be just a minute".
External link
Second
A second was a portion of a minute, this could be a decimal hundredth of a minute, or some other fractional portion of a minute.
On Earth a second was 1/60 of a minute, and was usually divided up decimally.
External link
Nanosecond
A nanosecond was one billionth of a second.
In 2365, the USS Yamato was destroyed by a plasma vent that lasted T+2.25 nanoseconds. (TNG: "Contagion")
To attract the attention of the Crystalline Entity, the USS Enterprise-D emitted five-nanosecond graviton emissions at one pulse per second. (TNG: "Silicon Avatar")
External link
Stardate
Main article: Stardate
In the 23rd century, stardates were not directly related to Earth's calendar. Beginning in 2323, stardates were changed to be 1,000 per Earth year, .