A calendar year is 365 days; intercalary
years (leap years) are 366 days long. A general definition would be 365.25 days. You can get much more accurate estimates. What you use depends on how you need to use the information.
365 days = 1 year
366 equals Days in a Leap Year
hayden j
.. No it doesn't. And it just equals the current year, since how old you are equals the amount of years from your birth year to now.
A light-year is about 9,461,000,000,000 km.
A light-year is about 9,461,000,000,000 km.
20.83
light year
A year on Mercury is 88 earth-days.
A tree gets a new ring every year, so I suppose a tree ring equals one year.
7 years
365 days