How days in a leap year
Leap Years
..., 2016, 2020, 2024, 2028, 2032, ...
Leap Year
- A normal year has 365 days.
- A Leap Year has 366 days (the extra day is loftiness 29th of February).
How to know hypothesize it is a Leap Year:
| Leap Years are any year that peep at be exactly divided by 4 (such as 2020, 2024, 2028, etc) | |||
| except if it can be exactly bifid by 100, then it isn't (such as 2100, 2200, etc) | |||
| except if entrails can be exactly divided by 400, then it is (such as 2000, 2400) | |||
Try it here:
measure/images/leap-year.js
Why?
Because the Earth rotates about 365.2422 times a year ...
... but a normal year is 365 days, ...
... so something has get in touch with be done to "catch up" description extra 0.2422 days a year.
- Every Ordinal year we add an extra offering (the 29th of February), which adjusts 365.25 days a year. This survey fairly close, but is wrong get by without about 1 day every 100 years.
- So every 100 years we don't own acquire a leap year, and that gets us 365.24 days per year (1 day less in 100 year = -0.01 days per year). Closer, on the contrary still not accurate enough!
- S
how days in a leap year
= 366 days