The concept of a "month" doesn't really apply to any planet except the Earth.
On Earth the month is closely connected to the Phases of our Moon.
A month is not like a "day" or a "year" which depend on times of rotation and revolution of a planet.
A planet's rotation on its axis determines the length of its day.
distance from a source of light and how long it takes to orbit that source
Mercury.
How long it spins on it's axis
Rotational time of the planets is random (the length of the planet's day), but the outer planets do spin faster than the inner planets.
A planet's rotation on its axis determines the length of its day.
A week is a seven day cyclical period, used to divide the length of a month into smaller parts
Usually, its mass determines its weight.
Usually the length. Sometimes, though the orientation determines which measurement is the length. Usually the length. Sometimes, though the orientation determines which measurement is the length. Usually the length. Sometimes, though the orientation determines which measurement is the length. Usually the length. Sometimes, though the orientation determines which measurement is the length.
distance from a source of light and how long it takes to orbit that source
The length of a lunar month, or the time it takes for the Moon to complete a full cycle of phases, is determined by the time it takes for the Moon to orbit the Earth. On average, a lunar month lasts about 29.5 days. This slight variation accounts for why some lunar months are a bit longer or shorter.
people
The length of the vessel determines what equipment is required.
the length of the boat
The time it takes for any given planet to make one complete revolution around its sun determines the length of its year.
The overall length of the vessel determines the equipment that it is able to carry.
Length of a boat determines the equipment a boat must carry.