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  2. List of non-standard dates - Wikipedia

    en.wikipedia.org/wiki/List_of_non-standard_dates

    February 30. February 30 or 30 February is a date that does not occur on the Gregorian calendar, where the month of February contains only 28 days, or 29 days in a leap year. However, from a historical perspective February 30 has been used at least once and appears in some reform calendars . The thirteenth-century scholar Johannes de Sacrobosco ...

  3. Gregorian calendar - Wikipedia

    en.wikipedia.org/wiki/Gregorian_calendar

    The Gregorian calendar, like the Julian calendar, is a solar calendar with 12 months of 28–31 days each. The year in both calendars consists of 365 days, with a leap day being added to February in the leap years. The months and length of months in the Gregorian calendar are the same as for the Julian calendar.

  4. Leap year - Wikipedia

    en.wikipedia.org/wiki/Leap_year

    Leap year. A leap year (also known as an intercalary year or bissextile year) is a calendar year that contains an additional day (or, in the case of a lunisolar calendar, a month) compared to a common year. The 366th day (or 13th month) is added to keep the calendar year synchronised with the astronomical year or seasonal year. [1]

  5. Presidents' Day - Wikipedia

    en.wikipedia.org/wiki/Presidents'_Day

    Presidents' Day, officially Washington's Birthday at the federal governmental level, is a holiday in the United States celebrated on the third Monday of February. It is often celebrated to honor all those who served as presidents of the United States and, since 1879, has been the federal holiday honoring Founding Father George Washington, who led the Continental Army to victory in the American ...

  6. What’s the point of a Leap Year? Why 2024 brings 29 days of ...

    www.aol.com/point-leap-why-2024-brings-192452163...

    February 29, 2024 at 12:26 AM. Every so often, the shortest month of the year, February, is given one extra day, making it 29 days long. 2024 is one of those years, making this year a leap year ...

  7. Leap year 2024: Why we have 29 days in February (almost ... - AOL

    www.aol.com/leap-2024-why-29-days-152901726.html

    One extra day in February There are 366 days in 2024, not the usual 365. Adding Feb. 29 to the calendar is necessary because in 2024, it will take Earth a quarter of a day longer to complete one ...

  8. Is 2024 a leap year? Everything you need to know about the ...

    www.aol.com/2024-leap-everything-know-upcoming...

    This year, 2024, is a leap year which means that February will have 29 days instead of 28. The last leap year was in 2020. It is commonly thought that leap years happen once every four years ...

  9. Federal holidays in the United States - Wikipedia

    en.wikipedia.org/wiki/Federal_holidays_in_the...

    Juneteenth National Independence Day. Independence Day. Labor Day. Columbus Day. Veterans Day. Thanksgiving Day. Christmas Day. Federal holidays in the United States are 11 calendar dates designated by the U.S. federal government as holidays. On these days non-essential U.S. federal government offices are closed and federal employees are paid ...