Recognised as Date
23 May 1016
- Thursday
- Q2
- Leap year
- Week 21
- Gemini
23 May 1016 falls on a Thursday in the proleptic Gregorian calendar, which did not yet exist at the time. It is day 144 of 366 in 1016, a leap year, falling in week 21 and quarter 2. Its Unix timestamp is -30,093,033,600.
Calendar position
Day of the weekThursdayproleptic Gregorian; contemporaries used the Julian calendar and would have named a different day
Day of the month23rd
Day of the year144 of 366
Days remaining in the year222
Days elapsed in the year143
ISO week numberWeek 21ISO 8601, weeks start on Monday
Week of the month4th
Occurrence in the month4th Thursday
MonthMay (month 5 of 12)
QuarterQ2 1016
Year1016
Days in the month31
Leap yearYes, 366 days
This date in other formats
ISO 86011016-05-23
British (D/M/Y)23/05/1016
American (M/D/Y)05/23/1016
Long formThursday 23rd May 1016
RFC 2822Thu, 23 May 1016 00:00:00 GMT
Compact10160523
In wordsthe 23rd of May, one thousand and sixteen
Julian calendar equivalent17 May 1016the date contemporaries would have written, before the Gregorian calendar existed
This date in other calendars
Hebrew7 Sivan 4776the Hebrew calendar has been fully algorithmic since the ninth century, so this is exact
Islamic (tabular)7 Dhu al-Hijjah 406 AHthe tabular reckoning; the calendar in religious use begins each month on an actual crescent sighting, so expect a day either way
Persian (arithmetic)2 Khordad 395the arithmetic (Birashk) calendar; the official Solar Hijri calendar takes its new year from the astronomical equinox at Tehran
Rata Die370,864days since 1 January 1 CE in the proleptic Gregorian calendar, the pivot every conversion here runs through
Unix time & day counts
Unix timestamp-30,093,033,600seconds since 1 January 1970, midnight UTC
Unix timestamp (ms)-30,093,033,600,000
Relationship to the epoch348,299 days before the Unix epoch
Julian Day Number2,092,289midnight UTC
Days since 1 January 1900-322,732
Days since 1 January 2000-359,256
Moon phase
PhaseWaxing gibbousthe same phase everywhere on Earth at the same instant
Illuminated at 12:00 UTC61%≈to about 1%, by Meeus
Waxing or waningWaxing
Moon age at 12:00 UTC8.2 dayssince the previous new moon
Previous new moon15 May 1016
Next new moon13 June 1016
Previous full moon30 April 1016
Next full moon30 May 1016
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.
Today18 September 2026
Days ago369,013 days
In other terms1,010 years, 110 days and 12 hours
Weeks52716.1 weeks ago
Anniversary this year118 days ago
Years elapsed1,010 complete years
Seasons & signs
Zodiac signGeminiAir sign
Chinese zodiac yearDragonthe animal changes at Chinese New Year, not 1 January
Season (Northern Hemisphere)Springmeteorological seasons, by whole months
Season (Southern Hemisphere)Autumn
Easter Sunday that year7 April 1016
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