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Thread: Leap Year: 2012 is a Leap Year Today Thursday.

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    exclaim Leap Year: 2012 is a Leap Year Today Thursday.

    Leap year: 2012 is a Leap Year

    Leap Years 2008 – 2032

    Year February 29 – day of the week 2008 Friday 2012 Wednesday 2016 Monday 2020 Saturday 2024 Thursday 2028 Tuesday 2032 Sunday
    Upcoming leap day: 29 February, 2012
    A leap year consists of 366 days, as opposed to a common year, which has 365 days.

    During Leap Years, we add a leap day, an extra – or intercalary – day on February 29. Nearly every 4 years is a Leap Year in our modern gregorian calender
    Why do we need Leap Years?

    Leap Years are needed to keep our calendar in alignment with the Earth's revolutions around the sun. It takes the Earth approximately 365.242199 days – or 365 days, 5 hours, 48 minutes, and 46 seconds (a tropical year) – to circle once around the Sun.
    However, the Gregorian calendar has only 365 days in a year, so if we didn't add a day on February 29 nearly every 4 years, we would lose almost six hours off our calendar every year. After only 100 years, our calendar would be off by approximately 24 days!
    How do we calculate Leap Years?

    In the Gregorian calendar 3 criteria must be met to be a leap year:

    • The year is evenly divisible by 4;
    • If the year can be evenly divided by 100, it is NOT a leap year, unless;
    • The year is also evenly divisible by 400. Then it is a leap year.

    This means that 2000 and2400 are leap years, while 1800, 1900, 2100, 2200, 2300and 2500are NOT leap years.
    The year 2000 was somewhat special as it was the first instance when the third criterion was used in most parts of the world since the transition from the julian to the
    Who invented Leap Years?

    Julius Caesar introduced Leap Years in the Roman empire over 2000 years ago, but the had only one rule: any year evenly divisible by 4 would be a leap year. This lead to way too many leap years, but didn't get corrected until the introduction of themore than 1500 years later.

    Leap Year in other calendars

    Last edited by ~Maliha~; 06-04-2012 at 10:54 AM.

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