they added a extra day to february because in every 4 years there is 1/4 th of a day which is meant to be a extra day.
The sun makes us add another day.
Well each year is actually 365 1/4 day long. So every four years you would need to add an extra day. If we didn't add an extra day, then slowly our seasons would get mixed up.
February is the month that has an extra day in leap years.
years ago there was a fack sheet in the green sheet of the Milwaukee Sentinel called ASK ANDY and in said every 10,000 years to correct the calendar you needed to add and extra extra day to February.
each day is not really 24 hours but in fact a bit more so every 4 years we add that time up to be an extra day in february
leap years have an extra day in february (feburary 29th) but leap years only happen every four years.
the earth takes more than 365 days to circle the sun so that adds up to an extra day and feb is shortest
February
If there is an extra day in February its a leap year.
for leap year the
February 29
There are two full fortnights in February, and one extra day if it is a leap year.