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The quick and dirty answer: Because the number of days in a year is not an exact whole number. So the moment when one full orbit is completed will not always happen at midnight of the same calendar day. In fact, it can happen at any time of night or day. The calendar has to be adjusted now and then so that the seasonal drift doesn't get too big.
What else can I help you with?
What year is it according to the Mayan calendar and how does it differ from the Gregorian calendar?
According to the Mayan calendar, it is currently the year 5,125. This differs from the Gregorian calendar, which is currently in the year 2021. The Mayan calendar is based on a different system of counting time and has a different starting point than the Gregorian calendar.
How many days in a normal calendar year?
There are 365 days in earth's year as well as the current calendar.
How october calendar is the same each year and how it is different?
The year is different
Why Chinese called Chinese New Year as lunar new year?
Because in the Chinese Calendar, which is the Lunar Calendar, it is the New Year. The Lunar Calendar and Solar Calendar is different.
Why has it changed from the year of the cat to the year of the rabbit?
because the Chinese calendar is different from the calendar used in the US
How can you tell the time of year without looking at a calendar or clock (by looking at the sky)?
During the year, due to the earth's orbit, different constellations appear during different seasons. You can use the constellations to determine the time of year.
How many year is 270 days?
270 days = 0.73973 ordinary calendar year 0.72770 calendar leap year 0.73924 earth orbital period
How long does it take for the moon to orbit in a year and calendar?
Well, the moon orbits the earth approximately 13 times a year, and the calendar for this is variable.
Why is Chinese New Year on a different date ever year?
The Chinese new year is on a different date every year because it is based on the Chinese calendar, known as the lunisolar calendar. Typically date systems are usually based upon the Gregorian calendar.
When will there be a full moon on earth day?
Not this year. Earth Day is the same date in the Gregorian calendar each year, and the Gregorian calendar is not synchronized with the lunar calendar at all.
Why are the Chinese calendar year and the US year not the same?
different time lines
Why in some other countries there is a different year?
Because they use a different calendar.
