Astronomy and calendars
English Perpetual calendar September 2015
Deutsch Espanol Italiano day calendar - Calendar 2015

(for BC Years use astronomical notation)

September 2015
1234Fase Luna5
Fase Luna13141516171819
20Fase Luna212223242526
27Fase Luna282930
Gregorian Calendar
Events of the month
Astronomical events
IconaDescrizioneDataOra T.U.
Last quarterLast quarterSaturday 5 09:55
New MoonNew MoonSunday 13 06:40
Partial Solar Eclipse<br>(Antarctic region)Partial Solar Eclipse
(Antarctic region)
Sunday 13 06:51
First QuarterFirst QuarterMonday 21 08:55
Equinozio d´autunnoWednesday 23 08:20
Full MoonFull MoonMonday 28 02:49
Total Lunar EclipseTotal Lunar EclipseMonday 28 02:45
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).


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