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  2. Julian day - Wikipedia

    en.wikipedia.org/wiki/Julian_day

    The Julian date (JD) of any instant is the Julian day number plus the fraction of a day since the preceding noon in Universal Time. Julian dates are expressed as a Julian day number with a decimal fraction added. [8] For example, the Julian Date for 00:30:00.0 UT January 1, 2013, is 2 456 293.520 833. [9]

  3. History of calendars - Wikipedia

    en.wikipedia.org/wiki/History_of_calendars

    In the so-called five-phase calendar, the year consists of 10 months and a transition, each month being 36 days long, and the transitions 5 or 6 days. During the Warring States period (~475–220 BC), the primitive lunisolar calendars were established under the Zhou Dynasty, known as the six ancient calendars ( simplified Chinese : 古六历 ...

  4. Template:Start date and age - Wikipedia

    en.wikipedia.org/wiki/Template:Start_date_and_age

    The Start date and age template displays the date that an event or entity started or was created. Template parameters [Edit template data] Parameter Description Type Status Year 1 A four-digit number indicating the year Example 2017 Number required Month 2 A number between 1 and 12 indicating the month Example 12 Number suggested Day 3 A number between 1 and 31 indicating the day of the month ...

  5. List of non-standard dates - Wikipedia

    en.wikipedia.org/wiki/List_of_non-standard_dates

    This means March 1, 1900 is the earliest date that can be used reliably in Excel. February 31 is used (along with February 32 and February 33) for calculating weather data. [18] [19] Other non-standard dates are sometimes used in software engineering. For example, Java (specifically the java.util.Calendar class) allows dates such as February 0 ...

  6. Gregorian calendar - Wikipedia

    en.wikipedia.org/wiki/Gregorian_calendar

    To reinstate the association, the reform advanced the date by 10 days: [c] Thursday 4 October 1582 was followed by Friday 15 October 1582. [3] In addition, the reform also altered the lunar cycle used by the Church to calculate the date for Easter, because astronomical new moons were occurring four days before the calculated dates.

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    mail.aol.com/?icid=aol.com-nav

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  8. Wikipedia:Current date and time - Wikipedia

    en.wikipedia.org/.../Wikipedia:Current_date_and_time

    Wikipedia: Current date and time. 1 language. Simple English; ... Today is Thursday, December 19, 2024. The time is 03:36 (UTC).

  9. Date and time notation in the United States - Wikipedia

    en.wikipedia.org/wiki/Date_and_time_notation_in...

    Date Time Group format, used most often in operation orders. This format uses DDHHMMZMONYY, with DD being the two-digit day, HHMM being the time on a 24-hour clock, Z being the timezone code, MON being the three-letter month, and YY being the two-digit year. For example, 041200ZFEB23 is noon, UTC, on 4 Feb 2023. [13]