Recognised as Date
9 December 1077
- Sunday
- Q4
- Common year
- Week 49
- Sagittarius
9 December 1077 falls on a Sunday in the proleptic Gregorian calendar, which did not yet exist at the time. It is day 343 of 365 in 1077, falling in week 49 and quarter 4. Its Unix timestamp is -28,150,761,600.
Calendar position
Day of the weekSundayproleptic Gregorian; contemporaries used the Julian calendar and would have named a different day
Day of the month9th
Day of the year343 of 365
Days remaining in the year22
Days elapsed in the year342
ISO week numberWeek 49ISO 8601, weeks start on Monday
Week of the month2nd
Occurrence in the month2nd Sunday
QuarterQ4 1077
Year1077
Days in the month31
Leap yearNo, 365 days
This date in other formats
ISO 86011077-12-09
British (D/M/Y)09/12/1077
American (M/D/Y)12/09/1077
Long formSunday 9th December 1077
RFC 2822Sun, 09 Dec 1077 00:00:00 GMT
Compact10771209
In wordsthe 9th of December, one thousand and seventy-seven
Julian calendar equivalent3 December 1077the date contemporaries would have written, before the Gregorian calendar existed
This date in other calendars
Hebrew15 Kislev 4838the Hebrew calendar has been fully algorithmic since the ninth century, so this is exact
Islamic (tabular)14 Jumada I 470 AHthe tabular reckoning; the calendar in religious use begins each month on an actual crescent sighting, so expect a day either way
Persian (arithmetic)18 Azar 456the arithmetic (Birashk) calendar; the official Solar Hijri calendar takes its new year from the astronomical equinox at Tehran
Rata Die393,344days since 1 January 1 CE in the proleptic Gregorian calendar, the pivot every conversion here runs through
Unix time & day counts
Unix timestamp-28,150,761,600seconds since 1 January 1970, midnight UTC
Unix timestamp (ms)-28,150,761,600,000
Relationship to the epoch325,819 days before the Unix epoch
Julian Day Number2,114,769midnight UTC
Days since 1 January 1900-300,252
Days since 1 January 2000-336,776
Moon phase
PhaseWaning gibbousthe same phase everywhere on Earth at the same instant
Illuminated at 12:00 UTC99%≈to about 1%, by Meeus
Waxing or waningWaning
Moon age at 12:00 UTC15 dayssince the previous new moon
Previous new moon24 November 1077
Next new moon24 December 1077
Previous full moon8 December 1077
Next full moon7 January 1078
PrecisionDates onlybefore 1700 or after 2150 the Earth's rotation is not known well enough to give a time, and a phase near midnight can land a day either side
Relative to today
These values depend on today’s date and change daily.
Today19 September 2026
Days ago346,534 days
In other terms948 years and 277 days
Weeks49504.9 weeks ago
Anniversary this yearin 81 days
Years elapsed948 complete years
Seasons & signs
Zodiac signSagittariusFire sign
Chinese zodiac yearSnakethe animal changes at Chinese New Year, not 1 January
Season (Northern Hemisphere)Wintermeteorological seasons, by whole months
Season (Southern Hemisphere)Summer
Easter Sunday that year22 April 1077
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