The planet's rotational period is the only thing that determines the length of one day.
(mostly - it also is dependent on how fast the planet orbits the sun. If it orbits quickly, the "day" will be measurably less than the time for one full rotation.)
Green Tremblay
The length of a day is based on Earth's rotation on its axis, which takes approximately 24 hours to complete. This rotation creates periods of daylight and darkness as different parts of the Earth face the sun.
The Moon's day, or "lunar day" lasts about 29.5 Earth days, which is the time it takes for the Moon to complete one full rotation on its axis. This is the same amount of time it takes for the Moon to complete one orbit around the Earth.
The length of a "day" on the moon is 29 Earth days.
The length of an Earth day is determined by the time required for approximately one full rotation of the Earth on its axis. It takes approximately 24 hours for the Earth to complete one rotation, resulting in a day-night cycle. This rotation period is the basis for our concept of a day.
A day on Mars is approximately 24 hours and 40 minutes long. This means that a Martian day, or sol, is slightly longer than a day on Earth.
The Moon's day, or "lunar day" lasts about 29.5 Earth days, which is the time it takes for the Moon to complete one full rotation on its axis. This is the same amount of time it takes for the Moon to complete one orbit around the Earth.
The rotation of the Earth on its axis is responsible for day length. Each full rotation takes approximately 24 hours, creating the cycle of day and night. The tilt of the Earth's axis also influences the variation in day length throughout the year at different latitudes.
24 hours of the day
The length of a day is based on Earth's rotation on its axis, which takes approximately 24 hours to complete. This rotation creates periods of daylight and darkness as different parts of the Earth face the sun.
A day on Mars is approximately 24 hours and 40 minutes long. This means that a Martian day, or sol, is slightly longer than a day on Earth.
One day on Saturn lasts about 10.7 hours. Saturn's fast rotation speed contributes to its short day length compared to its year length.
It takes 24 hours (the length of one day) for the Earth to rotate once. If the rotation sped up, the length of a day would shorten.
One spin is what measures the length of one day
Mercury: Approximately 59 Earth days Venus: Approximately 243 Earth days Earth: 24 hours Mars: Approximately 24.6 Earth hours Jupiter: Approximately 10 Earth hours Saturn: Approximately 10.7 Earth hours Uranus: Approximately 17.2 Earth hours Neptune: Approximately 16.1 Earth hours
243 earth days
28 days
64 hours