how long is a year?

Answer 1

365 days 366 on a leap year

Answer 2

365 1/4 days 366 1/4 on leap years

Answer 3

We know that the rotation period of the earth is 23 hr. 56 min. 4.091 sec. (I got that from the World Almanac). Using this value,

y = (1 day - 235.909 sec) / 235.909 sec

we now get y=365.2429 days. Since we only started with 6-digit accuracy we will use 365.243 because this is as accurate as we can be with that data.

Another way to figure out the length of the year is;

We use a 365 day year, with a leap year every 4 years. That's 365.25 days per year. But, three of every four century-years is not a leap year. By doing that we are subtracting off 3 days every 400 years, or .0075 days every year. That gives us a year of 365.2425 days. That may, or may not, be more accurate than our calculated value of 365.243 days.

By the way, the year 2000 is a leap year, while 1700, 1800, and 1900 were not.

Answer 4

Some one didnt graduate kinder garden. Every one knows there is 365 in a normal year and 366 in a leap year.
And how does this have to do with football?

Answer 5

365 Days

Answer 6

365 days or 22 weeks or 12 months

Answer 7

365 and 1/4 of a day.

Answer 8

365 days and every 4 years a day has been added and it is called LeapDay.
the reason why is that it takes 365 days and 6 hours and 4 seconds for earth to revolve to. around the sun and since it takes 1/4 a day to do this we wait until the day is caught up for you.

Answer 9

1/10 of a decade. 1/100 of a century.
365 or 366 days.
52 weeks
12 months
8760 hours
525600 minutes
3153600 seconds

Answer 10

365 days