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There are four principal (primary, or major) lunar phases: the new moon, first quarter, full moon, and last quarter (also known as third or final quarter), when the Moon's ecliptic longitude is at an angle to the Sun (as viewed from the center of the Earth) of 0°, 90°, 180°, and 270° respectively.
The first day of each month is the new moon. On the seventh or eighth day of each month, the first-quarter moon is visible in the afternoon and early evening. On the 15th or 16th day of each month, the full moon is visible all night. On the 22nd or 23rd day of each month, the last-quarter moon is visible late at night and in the morning.
The last quarter of the year is the fourth quarter or Q4. This quarter takes place in October, November and December. Q4 is the time when most companies have to hustle.
Since each lunation is approximately 29 + 1 ⁄ 2 days, [1] it is common for the months of a lunar calendar to alternate between 29 and 30 days. Since the period of 12 such lunations, a lunar year, is 354 days, 8 hours, 48 minutes, 34 seconds (354.36707 days), [1] purely lunar calendars are 11 to 12 days shorter than the solar year.
Spending on goods such as appliances and furniture fell at a 1.9% annual pace, the biggest such quarterly drop since 2021. Still, services spending rose at a healthy 3.9% clip, the most since mid ...
Here are 10 surprising facts about Women’s History Month. ... Zetkin reportedly suggested in 1921 that March 8 become International Women’s Day as a result. Women’s History Month started as ...
One in five to six years has a 53rd week which is usually appended to the last quarter. It is then 98 days instead of 91 days long, which complicates comparisons. In the Chinese calendar, the quarters are traditionally associated with the 4 seasons of the year: Spring: 1st to 3rd month; Summer: 4th to 6th month; Autumn: 7th to 9th month; Winter ...
Image credits: historians #3. East German soldier helps a little boy sneak across the Berlin Wall the day it was erected in 1961. The boy had been left behind in the chaos of people fleeing to be ...