Convert Minute (min) to Hour (Sidereal) (h (sidereal)) instantly.
About these units
Minute (min)
A minute is equal to 60 seconds, a remnant of the ancient Babylonian base-60 (sexagesimal) numeral system. Civilizations such as the Sumerians and Babylonians divided circles, geometry, and time into 60-based increments, an elegant system that persists today in minutes and seconds. Minutes serve as a comfortable human-scale unit—long enough to measure meaningful intervals (such as short tasks or durations in sports) yet short enough to maintain precision in technical contexts. Meteorologists, musicians, aviators, and engineers still rely heavily on minutes because they allow intuitive expression of small-to-medium time spans. Despite its ancient origin, the minute remains an indispensable unit in modern life, reflecting our deep cultural inheritance from early mathematical civilizations.
Hour (Sidereal) (h (sidereal))
A sidereal hour is 1/24 of a sidereal day, approximately 59 minutes and 50.17 seconds of solar time. Astronomers use sidereal hours to measure right ascension and to coordinate telescope pointing systems. Because stars return to the same apparent position after exactly one sidereal day, sidereal hours offer a stable celestial reference frame. While not used in daily life, sidereal hours are indispensable for precision observation of the universe.