One lunar month is 29.53 days, the time taken from one new moon to the next. The first quarter is 7.3825 days from the new moon phase, one quarter of the lunar month. That's about 7 days and 8 hours.
It takes the moon 29 and a half days to go through each cycle.
7 days
A full cycle is about 29.5 days, so a quarter cycle will be 1/4 of this, on average (divide 29.5 by 4). This is just an average; since the Moon's orbit is not a perfect circle, it may vary a bit.
An entire cycle is about 29 1/2 days, on average. The "phases" are more like points in time, when the Moon shows a certain shape.
At "half Moon" we see half of the Moon's hemisphere that is facing Earth. But "half Moon" isn't what astronomers call that phase of the Moon. It is called a "quarter Moon" phase. That's because the Moon has completed one quarter (at First Quarter phase) or three quarters (at Third Quarter phase) of an orbit around the Earth since new Moon. (Another possible reason is that we see a quarter of the total surface of the Moon at these phases.)
29.5 days
About a second and a quarter.
1 day
It takes the moon 29 and a half days to go through each cycle.
3 months
7.4 days (rounded)
14.77 days
7 days
7 days
During it's normal course of phases, from full moon to last quarter is about a week.
actually it is usually 28 days
On the average, 365.23 days .