Convert Sidereal Days to Minutes

Convert Sidereal Days (sid.d) to Minutes (min) instantly and accurately.

Conversion Formula

min = sid.d × 1436.068175

About Sidereal Days

A sidereal day = Earth's rotation period relative to the stars = 23 h 56 min 4.0905 s = 86,164.0905 s - ~3 min 56 s shorter than the 24 h solar day because Earth advances ~1° in its orbit each day. Equatorial telescope mounts rotate at one turn per sidereal day to track stars. VLBI, GPS orbit determination, and polar-motion monitoring use sidereal rotation as their reference. 1 sid. day = 86,164.0905 s.

About Minutes

A minute (min) = exactly 60 s, inherited from Babylonian sexagesimal astronomy. Medieval astronomers named the sixtieth part of a degree 'pars minuta prima' (hence minute); its sixtieth 'pars minuta secunda' (hence second). Running performance is expressed in min/km or min/mile; music tempo in BPM (beats per minute, ~40-220); angles in degrees-minutes-seconds (DMS). 1 min = 60 s = 1/60 h.

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