Convert fortnight to second (sidereal)
Please provide values below to convert fortnight [None] to second (sidereal) [None], or Convert second (sidereal) to fortnight.
How to Convert Fortnight to Second (Sidereal)
1 None = 1212911.7767672 None
Example: convert 15 None to None:
15 None = 15 × 1212911.7767672 None = 18193676.651508 None
Fortnight to Second (Sidereal) Conversion Table
| fortnight | second (sidereal) |
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Fortnight
A fortnight is a period of two weeks, equivalent to 14 days.
History/Origin
The term 'fortnight' originates from the Old English 'fēowertīene niht', meaning 'fourteen nights'. It has been used in English since the 16th century to denote a two-week interval.
Current Use
The term 'fortnight' is still used in British English and some other English-speaking regions to specify a two-week period, especially in scheduling and planning contexts.
Second (Sidereal)
A second (sidereal) is the time measurement based on Earth's rotation relative to distant stars, approximately 3 minutes shorter than the solar second, used in astronomy.
History/Origin
The sidereal second has origins in astronomical observations of Earth's rotation relative to distant celestial objects. It was established to provide a precise time standard for celestial measurements, differing from the solar second used in everyday timekeeping.
Current Use
The sidereal second is primarily used in astronomy and astrophysics for precise time measurements related to celestial events, star tracking, and satellite navigation systems.