Green.
15 years at 365 days per year = 5475 days 5 years at 366 days per year = 1830 days 5475 + 1830 = 7305 days When they skip a leap year inbetween those 20 years, you get 7,304 days. When you skip a leap year and change it to every 5 years, you get 7,303 days. We do this because the length of the year is not actually 365.25 but actually 365.242 days.
There are 366 days in a leap year.
To keep the calendar correct. A year is not exactly 365.25 days
2013 is not a leap year, so Christmas Day will not skip over Wednesday.2013 is not a leap year, so Christmas Day will not skip over Wednesday.2013 is not a leap year, so Christmas Day will not skip over Wednesday.2013 is not a leap year, so Christmas Day will not skip over Wednesday.2013 is not a leap year, so Christmas Day will not skip over Wednesday.2013 is not a leap year, so Christmas Day will not skip over Wednesday.2013 is not a leap year, so Christmas Day will not skip over Wednesday.2013 is not a leap year, so Christmas Day will not skip over Wednesday.2013 is not a leap year, so Christmas Day will not skip over Wednesday.2013 is not a leap year, so Christmas Day will not skip over Wednesday.2013 is not a leap year, so Christmas Day will not skip over Wednesday.
The leap year day pushes all the days after it for one year ahead an extra day.
Because it is on a Wednesday. Normally a date advances by one day each year. In a leap year it advances by two days. Christmas Day was on a Sunday in 2011. Because 2012 was a leap year it jumped two days to Tuesday. 2013 is not a leap year, so it will move one day and be on Wednesday. It will Thursday in 2014, Friday in 2015 and because 2016 will be a leap year it will skip two days again and Christmas Day will be on a Sunday. In 2017 it will be a Monday, as 2017 is not a leap year.Because it is on a Wednesday. Normally a date advances by one day each year. In a leap year it advances by two days. Christmas Day was on a Sunday in 2011. Because 2012 was a leap year it jumped two days to Tuesday. 2013 is not a leap year, so it will move one day and be on Wednesday. It will Thursday in 2014, Friday in 2015 and because 2016 will be a leap year it will skip two days again and Christmas Day will be on a Sunday. In 2017 it will be a Monday, as 2017 is not a leap year.Because it is on a Wednesday. Normally a date advances by one day each year. In a leap year it advances by two days. Christmas Day was on a Sunday in 2011. Because 2012 was a leap year it jumped two days to Tuesday. 2013 is not a leap year, so it will move one day and be on Wednesday. It will Thursday in 2014, Friday in 2015 and because 2016 will be a leap year it will skip two days again and Christmas Day will be on a Sunday. In 2017 it will be a Monday, as 2017 is not a leap year.Because it is on a Wednesday. Normally a date advances by one day each year. In a leap year it advances by two days. Christmas Day was on a Sunday in 2011. Because 2012 was a leap year it jumped two days to Tuesday. 2013 is not a leap year, so it will move one day and be on Wednesday. It will Thursday in 2014, Friday in 2015 and because 2016 will be a leap year it will skip two days again and Christmas Day will be on a Sunday. In 2017 it will be a Monday, as 2017 is not a leap year.Because it is on a Wednesday. Normally a date advances by one day each year. In a leap year it advances by two days. Christmas Day was on a Sunday in 2011. Because 2012 was a leap year it jumped two days to Tuesday. 2013 is not a leap year, so it will move one day and be on Wednesday. It will Thursday in 2014, Friday in 2015 and because 2016 will be a leap year it will skip two days again and Christmas Day will be on a Sunday. In 2017 it will be a Monday, as 2017 is not a leap year.Because it is on a Wednesday. Normally a date advances by one day each year. In a leap year it advances by two days. Christmas Day was on a Sunday in 2011. Because 2012 was a leap year it jumped two days to Tuesday. 2013 is not a leap year, so it will move one day and be on Wednesday. It will Thursday in 2014, Friday in 2015 and because 2016 will be a leap year it will skip two days again and Christmas Day will be on a Sunday. In 2017 it will be a Monday, as 2017 is not a leap year.Because it is on a Wednesday. Normally a date advances by one day each year. In a leap year it advances by two days. Christmas Day was on a Sunday in 2011. Because 2012 was a leap year it jumped two days to Tuesday. 2013 is not a leap year, so it will move one day and be on Wednesday. It will Thursday in 2014, Friday in 2015 and because 2016 will be a leap year it will skip two days again and Christmas Day will be on a Sunday. In 2017 it will be a Monday, as 2017 is not a leap year.Because it is on a Wednesday. Normally a date advances by one day each year. In a leap year it advances by two days. Christmas Day was on a Sunday in 2011. Because 2012 was a leap year it jumped two days to Tuesday. 2013 is not a leap year, so it will move one day and be on Wednesday. It will Thursday in 2014, Friday in 2015 and because 2016 will be a leap year it will skip two days again and Christmas Day will be on a Sunday. In 2017 it will be a Monday, as 2017 is not a leap year.Because it is on a Wednesday. Normally a date advances by one day each year. In a leap year it advances by two days. Christmas Day was on a Sunday in 2011. Because 2012 was a leap year it jumped two days to Tuesday. 2013 is not a leap year, so it will move one day and be on Wednesday. It will Thursday in 2014, Friday in 2015 and because 2016 will be a leap year it will skip two days again and Christmas Day will be on a Sunday. In 2017 it will be a Monday, as 2017 is not a leap year.Because it is on a Wednesday. Normally a date advances by one day each year. In a leap year it advances by two days. Christmas Day was on a Sunday in 2011. Because 2012 was a leap year it jumped two days to Tuesday. 2013 is not a leap year, so it will move one day and be on Wednesday. It will Thursday in 2014, Friday in 2015 and because 2016 will be a leap year it will skip two days again and Christmas Day will be on a Sunday. In 2017 it will be a Monday, as 2017 is not a leap year.Because it is on a Wednesday. Normally a date advances by one day each year. In a leap year it advances by two days. Christmas Day was on a Sunday in 2011. Because 2012 was a leap year it jumped two days to Tuesday. 2013 is not a leap year, so it will move one day and be on Wednesday. It will Thursday in 2014, Friday in 2015 and because 2016 will be a leap year it will skip two days again and Christmas Day will be on a Sunday. In 2017 it will be a Monday, as 2017 is not a leap year.
212 days, or 213 days if the year of the April is a leap year.212 days, or 213 days if the year of the April is a leap year.212 days, or 213 days if the year of the April is a leap year.212 days, or 213 days if the year of the April is a leap year.212 days, or 213 days if the year of the April is a leap year.212 days, or 213 days if the year of the April is a leap year.212 days, or 213 days if the year of the April is a leap year.212 days, or 213 days if the year of the April is a leap year.212 days, or 213 days if the year of the April is a leap year.212 days, or 213 days if the year of the April is a leap year.212 days, or 213 days if the year of the April is a leap year.
365
A normal year has 365 days; a leap year has 366 days.
If the last two digits of the year are divisible by 4, e.g. 1972, then you know it is a leap year. Century years (e.g. 2000) are only leap years if they are divisible by 400. Leap years occur because a year is not exactly 365 days, but around 365.25 days.
When it is not a leap year, there are 31 days in December, as there are when it is a leap year.
365 1/4 days in a year 365 and a quarter days every year, that's why we have a leap year every fourth year to round it up