Convert hour to day (sidereal)
Please provide values below to convert hour [h] to day (sidereal) [None], or Convert day (sidereal) to hour.
How to Convert Hour to Day (Sidereal)
1 h = 0.0417807462379006 None
Example: convert 15 h to None:
15 h = 15 × 0.0417807462379006 None = 0.626711193568509 None
Hour to Day (Sidereal) Conversion Table
| hour | day (sidereal) |
|---|
Hour
An hour is a unit of time equal to 60 minutes or 3,600 seconds.
History/Origin
The hour has origins in ancient civilizations, notably the Babylonians, who divided the day into 24 hours. The modern 24-hour system was standardized in the 14th century and became widely adopted with the advent of mechanical clocks.
Current Use
Hours are used globally to measure and schedule time in daily life, work, transportation, and various scientific and technical applications.
Day (Sidereal)
A sidereal day is the time it takes for the Earth to complete one rotation relative to distant stars, approximately 23 hours, 56 minutes, and 4.1 seconds.
History/Origin
The concept of the sidereal day has been used in astronomy for centuries to measure Earth's rotation relative to fixed stars, differing slightly from the solar day used in everyday timekeeping.
Current Use
Sidereal days are primarily used in astronomy and celestial navigation to track the positions of stars and other celestial objects accurately.