Recognised as Date
21 May 1046
- Thursday
- Q2
- Common year
- Week 21
- Gemini
21 May 1046 falls on a Thursday in the proleptic Gregorian calendar, which did not yet exist at the time. It is day 141 of 365 in 1046, falling in week 21 and quarter 2. Its Unix timestamp is -29,146,521,600. A first quarter falls on this day.
Calendar position
Day of the weekThursdayproleptic Gregorian; contemporaries used the Julian calendar and would have named a different day
Day of the month21st
Day of the year141 of 365
Days remaining in the year224
Days elapsed in the year140
ISO week numberWeek 21ISO 8601, weeks start on Monday
Week of the month3rd
Occurrence in the month3rd Thursday
MonthMay (month 5 of 12)
QuarterQ2 1046
Year1046
Days in the month31
Leap yearNo, 365 days
This date in other formats
ISO 86011046-05-21
British (D/M/Y)21/05/1046
American (M/D/Y)05/21/1046
Long formThursday 21st May 1046
RFC 2822Thu, 21 May 1046 00:00:00 GMT
Compact10460521
In wordsthe 21st of May, one thousand and forty-six
Julian calendar equivalent15 May 1046the date contemporaries would have written, before the Gregorian calendar existed
This date in other calendars
Hebrew7 Sivan 4806the Hebrew calendar has been fully algorithmic since the ninth century, so this is exact
Islamic (tabular)6 Dhu al-Qidah 437 AHthe tabular reckoning; the calendar in religious use begins each month on an actual crescent sighting, so expect a day either way
Persian (arithmetic)31 Ordibehesht 425the arithmetic (Birashk) calendar; the official Solar Hijri calendar takes its new year from the astronomical equinox at Tehran
Rata Die381,819days since 1 January 1 CE in the proleptic Gregorian calendar, the pivot every conversion here runs through
Unix time & day counts
Unix timestamp-29,146,521,600seconds since 1 January 1970, midnight UTC
Unix timestamp (ms)-29,146,521,600,000
Relationship to the epoch337,344 days before the Unix epoch
Julian Day Number2,103,244midnight UTC
Days since 1 January 1900-311,777
Days since 1 January 2000-348,301
Moon phase
PhaseFirst quarterthe instant falls on this UTC day; in time zones far enough east or west the local date is a day either side
Illuminated at 12:00 UTC46%≈to about 1%, by Meeus
Waxing or waningWaxing
Moon age at 12:00 UTC6.7 dayssince the previous new moon
Previous new moon14 May 1046
Next new moon13 June 1046
Previous full moon29 April 1046
Next full moon28 May 1046
Lit side, Northern HemisphereRight
Lit side, Southern HemisphereLeftthe same Moon seen from the other side of the equator; near the equator the lit side points up or down rather than to one side
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 ago358,059 days
In other terms980 years and 114 days
Weeks51151.3 weeks ago
Anniversary this year121 days ago
Years elapsed980 complete years
Seasons & signs
Zodiac signGeminiAir sign
Chinese zodiac yearDogthe animal changes at Chinese New Year, not 1 January
Season (Northern Hemisphere)Springmeteorological seasons, by whole months
Season (Southern Hemisphere)Autumn
Easter Sunday that year5 April 1046
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