The leap years. It occurs every 4th year.
This year is a leap year which is something only happens every four years,a leap year contains 366 days rather than the normal year which contains 365 days,so with this year being a leap year it will contain an extra day than that which we are used to .
By multiplication, a normal "calendar year" of 365 days contains 525,600 minutes, while a leap year of 366 days contains 527,040 minutes.However, the Julian year of 365.25 days contains 525,960minutes, andthe SI year (31,556,926 seconds) contains 525,948.77 minutes.525600 in a normal year - 524040 in a leap year.525,600
1 leap year contains 366 days.
2013 is a non-leap year, therefore, it contains 365 days - and just 28 days in February.
1461 days (because one of those years will be a leap year with 366 days, rather than 365)17,532 hours 1,051,920 minutes 63,115,200 seconds
September contains 30 days no matter which year it falls in.
A leap year, which occurs once every four years, is when the month of February has 29 days instead of 28. When the calendar was created a year was noted to be 365 and one fourth days long. Rather than have a fourth of a day every year, one full day every four years was added.
September of any year always contains 30 days. It is only February whose number of days changes, based on whether it is a leap year or not, which 2010 was not.
There are 52 weeks in a year but the earth takes 365+ days to orbit the sun which is why the calendar year contains 365 days. Some years, every 4 years, are leap years which contain 366 days because the year is actually 365.2421875 days approximately.
Given that a year contains at most 366 days, I suggest that the main difference is that the first is impossible!
yes a year on Venus is less than 2 days
2013 is a non-leap year, therefore, it contains 365 days - and just 28 days in February.