Astronomy and calendars
English Perpetual calendar February 2017
Deutsch Espanol Italiano day calendar - Calendar 2017

(for BC Years use astronomical notation)

February 2017
123Fase Luna4
5678910Fase Luna11
121314151617Fase Luna18
Fase Luna262728
Gregorian Calendar
Events of the month
Astronomical events
IconaDescrizioneDataOra T.U.
First QuarterFirst QuarterSaturday 4 04:12
Full MoonFull MoonSaturday 11 00:31
Penumbral Lunar EclipsePenumbral Lunar EclipseSaturday 11 00:45
Last quarterLast quarterSaturday 18 19:35
New MoonNew MoonSunday 26 14:57
Anular Solar Eclipse<br>(Southern Hemisphere)Anular Solar Eclipse
(Southern Hemisphere)
Sunday 26 14:52
Christian Calendar
Event Day
Fat TuesdayTuesday 28
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).


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