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No guidance is provided about conversion of dates before March 5, -500, or after February 29, 2100 (both being Julian dates). For unlisted dates, find the date in the table closest to, but earlier than, the date to be converted. Be sure to use the correct column. If converting from Julian to Gregorian, add the
Download QR code; Print/export ... gives the current date in the Julian calendar. References. Hatcher, D. A. (1984). Simple formulae for Julian day numbers and ...
Note that Julian days begin at noon (hour = 12) and thus hours 0–11 of a solar day are one Julian day earlier than hours 12–23. The value may extend outside of the normal range and is considered as additional number of julian days (a Julian day is 24 hours or 86400 seconds exactly, ignoring any adjustment of leap seconds within the UTC ...
This template converts date elements, or date and time elements, into a Julian date timestamp. It interprets all dates starting at 15 October 1582 in the Gregorian calendar , otherwise it uses the Julian calendar that was valid until 4 October 1582.
[[Category:Date conversion templates]] to the <includeonly> section at the bottom of that page. Otherwise, add <noinclude>[[Category:Date conversion templates]]</noinclude> to the end of the template code, making sure it starts on the same line as the code's last character.
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]
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Alexander Jones says that the correct Julian calendar was in use in Egypt in 24 BC, [54] implying that the first day of the reform in both Egypt and Rome, 1 January 45 BC, was the Julian date 1 January if 45 BC was a leap year and 2 January if it was not. This necessitates fourteen leap days up to and including AD 8 if 45 BC was a leap year and ...