If you mean "one moon" as the Indians used the phrase to measure time, then the length of a lunar cycle (from one full moon to the next) would be just over 29.5 days.
one month
The Moon rotates with respect to the Sun in approximately 29.5 days. This is called the "synodic period",
The time from one full moon to the next ... or between two occurrences of any phase of the moon ...is 27.32 days.
28 days. That is how many days there are in the Islamic calendar, which is based on the phases of the moon.
4 days
14.77 days
it takes 28 days for the moon to orbit the earth so it is a full moon.
A "Moon year" is almost exactly the same as an Earth year. That's about 365 Earth days. The Earth and Moon orbit the Sun in about 365.25 Earth days. So the answer is: about 365. If you mean how many "Moon days" in one Moon year, that's different. The Moon rotates in about 27.3 Earth days. That's one definition of a "Moon day". In that case the answer is about 365/27.3 days = about 13.37 days.
About 27.5 days. From one full moon to the next, it takes a bit longer - about 29.5 days.
Roughly 29 days on earth is equal to one day on the moon.
Moon takes 27 days to rotate earth for one cycle.
The full cycle of the moon's phases, from the occurrence of any one of them until the next occurence of the same one, runs 29.53 days.
29.5 days
About 29.53 days.
Twenty-eight days. As the moon orbits the Earth - it rotates once on its axis.
29.53 days
27.32 days
The time from one full moon to the next ... or between two occurrences of any phase of the moon ...is 27.32 days.