To find out if any year is a leap year there are two factors you have to take into account.
Firstly the last two digits of the date are divisible by 4.
- 1976 was a leap year (76/4=19)
- 1978 was not a leap year (78/4=19.5)
- 1980 was a leap year
- 1984 was a leap year
- 1994 was not leap year
- 2010 is not leap year
- 2012 will be a leap year
Secondly you have to take into account century years.
If the last two digits are 00 then you see if the 1st 2 digits are divisible by 4.
- 1600 was a leap year (16/4=4)
- 1800 was not a leap year (18/4=4.5)
- 2000 was a leap year
- 2100 will not be a leap year
- 2200 will not be a leap year
- 2400 will be a leap year.