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The idea of months began as "Moon Cycles"... and thus the term Months from the word Moon.
A lunar month, however has 29.53 days, and a solar year has 365.242 days...
So the seasons would shift slowly with calendars based on 12 lunar months (and you would still have either 29 of 30 day months to compensate for fractional days in the lunar cycles).
But, perhaps because the moon (lunar) cycles were previously used, 12 months were chosen for the calendar.
365 days / 12 months = 30.416 days.
Thus to divide a year into 12 calendar months with full days (fractional days don't work), the number of days per month have to be varied slightly.
The approximately quarter day per year "extra" is compensated for by adding an extra day every 4 years on the leap year, with more complicated rules to compensate every century
Also see the Wikipedia articles on the Tropical Year that our calendar is based on, and the Sidereal Year which the procession of the equinoxes is based on.
What else can I help you with?
Every day falls on which two months?
Every day falls in one of twelve different months (thirteen months in some years of lunisolar calendars like the Jewish calendar).
Why do some months have different amount of days?
because the world it mad :P my freind gave me that answer
What months do animals hibernate in?
In the winter, depends on where they live in. Some countries have different season times.
Why do the months of a year have different lengths?
Original calendars measured the year by dividing it into months. That number of days was based on the cycle of the Moon, which lasts about 29 and one-half days. Months in different cultures ranged from 28 to 31 days, As the year, based on the Sun, is about 365 days, the months could not all have the same number of days. 365 is not divisible by 28, 29, 30, or 31, so naturally some months had to have different amounts of days. Different cultures came up with different ways of naming their months and giving them their lengths.
How many days in 15 months?
It depends which months. Different months have different numbers of days. There are a maximum of 458 days and a minimum of 454
What are the months of the year in order?
In the UK: January Febuary March April May June July August September October November December In some other countries they have other months and/or different order of months.
How many days ate in 55 months?
Different months have different amounts of days, ranging from 28 to 31. Even though there are different amounts of days in months, we can average out the months to 30.4368 days per month. By this calculation, there are 6018 days in 55 "average" months.
When are your chickens going to lay a egg?
Anytime after they are four to five months old. Different breeds start laying at different times. Early maturing birds can start at 4 months but some breeds take much longer.
How many months does have 28 days?
All twelve of them in the Western calendar have 28 days - though some have more. Some countries / religions used lunar or other calendars in which months may have a different number of days.
Are calendar months the same across the world?
No. Some countries use different calendars. So for example you have a Hebrew calendar, a Chinese calendar, an Islamic calendar, a Hindu calendar and many others. For those that use the Gregorian calendar, the months are the same around the world.
How may days are there in 10 years and 7 months?
It depends on what month you select, since different months have different lengths.
How many seconds is 9 months?
24105600 ================= It really depends on which 9 months you are talking about. A month can have anywhere from 28 to 31 days. Different months will have different numbers of seconds.
