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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 ...
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
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]
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 calendar).
This template takes a julian day number and returns the associated day of month within the Gregorian calendar. Computing formula (partially indented) For more information about how this formula works, see Julian day .
This template takes a julian day number and returns the associated month number within the Gregorian calendar. Computing formula (partially indented) For more information about how this formula works, see Julian day .
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This template takes a Julian day number and returns the date and time in same format generated by {{CURRENTTIMESTAMP}} magic word. The output of this template can then be formatted via the {{#time:}} parser function , which does not directly accept Julian day numbers.