- Day redirects here. For the Bajoran Field Colonel, see Day Kannu.
A 'millenium was a period of one thousand years.
A 'century was a period of one hundred years.
A 'decade was a period of ten years.
Standard UFP Solar yearEdit
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.
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|
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|
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 Deep Space 9, a full day was divided into 26 hours.
Standard UFP Solar DayEdit
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.
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".
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.
A nanosecond was one billionth of a second.
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, .