In regular years, the 100th day of the year is the 10th of April. In leap years, it's the 9th of April.
April
The 9th of April was the 100th day of the year 2000.
The 100th day of the calendar year, starting from January 1, is April 10. In a standard year, January has 31 days, February has 28 days, March has 31 days, and the first 10 days of April total to 100 days. In a leap year, the 100th day would still fall on April 10.
April 10
The 100th day of the year 2012 is April 9th (because of a leap year).
10 April 2010.
on what day of the week will my 100th birthday fall?
The 100th day of the year is April 10, on a normal calendar year, April 9 on a leap year.
April 10th is the 100th day of the year.
Monday 9 April 2012
April 10 2010 was a Saturday. It also was the 100th day of the year.
Oh, dude, the 100th day of a leap year is like April 9th. Leap years have an extra day in February, so you gotta count all those extra days to get to the 100th day. It's not rocket science, but hey, now you know.