The exact number varies, but roughly 29.5 days. The link will explain why.
It takes the moon 29 days or about 1 month to orbit the earth.
About 1 month
27.3 days (a sidereal month)
The moon revolves around earth once in 27.32 days. It displays a full cycle of phases in 29.53 days.
The moon orbits around the Earth approximately once every 27.3 days. This period is known as a synodic month or lunar month.
It takes the moon about 27.3 days to orbit around the Earth once. This period is known as the sidereal month.
A month (27 days 8 hours).
27
30 days are in the month of September
There are thirty days in the month of June.
There are 31 days in the month of October.
The month of Novemmber has thirty days.