Astronomy and calendars
English Perpetual calendar January 2019
Deutsch Espanol Italiano day calendar - Calendar 2019



(for BC Years use astronomical notation)

January 2019
SunMonTueWedThuFriSat
12345
Fase Luna6789101112
13Fase Luna141516171819
20Fase Luna212223242526
Fase Luna2728293031
Gregorian Calendar
Events of the month
Astronomical events
EventDescriptionDayUT
IconaDescrizioneDataOra T.U.
New MoonNew MoonSunday 6 01:27
Partial Solar Eclipse<br>(Arctic region)Partial Solar Eclipse
(Arctic region)
Sunday 6 01:41
First QuarterFirst QuarterMonday 14 06:42
Full MoonFull MoonMonday 21 05:14
Total Lunar EclipseTotal Lunar EclipseMonday 21 05:09
Last quarterLast quarterSunday 27 21:12
Christian Calendar
Event Day
Times are in UT - Universal Time (Greenwich Mean Time); for lunar phases and eclipses the error in within 2 min.


This perpetual calendar works for any year since 4713AC (-4712). The date of change from Julian Calendar to Gregorian is Oct 15 1582 (Julian Oct 5 1582).
For years before 321, when Emperor Constantine I introduced by decree the week cycle and Sunday rest, you will see the Roman Calendar with Kalendae, Nonae and Idi and the nundinal cycle instead of the week. You can always see the modern style calendar selecting from the dropdown menu.
For years between 46BC (first year of the Julian Calendar) and 4AD I tried to take into account the leap year error (which the priests interposed every three years instead of four) up to 8BC when August corrected this error suppressing three leap years.
For years before 46AC (-45) this calendar uses a analeptic julian calendar which obviously is different from the calendar used by Romans at the time (Numan Calendar).


Reference

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