29 1/2 days, or a month.
A lunar month is about 29.5 days long. Each moon phase, such as the new moon, first quarter, full moon, and last quarter, lasts for about 7-8 days.
A total lunar eclipse can last up to a few hours, typically around 3-4 hours from start to finish. This includes the partial phases before and after the total phase when Earth's shadow partially covers the moon.
There is no "last" in repeating cycles. Whatever phase you are thinking of, the next one restarts the series.
Any specific lunar phase can be observed only at the time when that lunar phase occurs, and not again for 29.53 days thereafter.
The lunar phase that precedes a full moon in the lunar cycle is the waxing gibbous phase. This phase occurs when the moon is more than half illuminated but not yet full.
The last three days of a lunar cycle are often referred to as the waning crescent phase. During this phase, the illuminated portion of the Moon visible from Earth decreases each day until it is no longer visible, marking the end of the lunar cycle.
Full.
The last quarter of the Moon occurs when half of the side we see from Earth is illuminated. This phase happens after the waning gibbous phase and before the new moon phase in the lunar cycle.
Easily. The lunar eclipse of December 21, 2010 will last (lasted) about 5-1/2 hours, with the 'total' phase lasting 73 minutes.
We do . . . Full.
The New Moon, First Quarter, Full Moon, and Third Quarter are moments in time, with no duration. The Waxing and Waning Crescents, and the Waxing and Waning Gibbous phases, each last roughly a week.
The lunar cycle of phases is about 29.5 days. As the moon rotates and revolves around the earth, and the earth rotates and revolves around the sun, the shadows cast by the shifting positions of the moon and earth cause the moon to wane, wax, and "disappear". This is known as the lunar cycle.