Recognised as Date
10 May 1164
- Sunday
- Q2
- Leap year
- Week 19
- Taurus
10 May 1164 falls on a Sunday in the proleptic Gregorian calendar, which did not yet exist at the time. It was day 131 of 366 in 1164, a leap year, falling in week 19 and quarter 2. Its Unix timestamp is -25,423,718,400.
Calendar position
Day of the weekSundayproleptic Gregorian; contemporaries used the Julian calendar and would have named a different day
Day of the month10th
Day of the year131 of 366
Days remaining in the year235
Days elapsed in the year130
ISO week numberWeek 19ISO 8601, weeks start on Monday
Week of the month2nd
Occurrence in the month2nd Sunday
MonthMay (month 5 of 12)
QuarterQ2 1164
Year1164
Days in the month31
Leap yearYes, 366 days
This date in other formats
ISO 86011164-05-10
British (D/M/Y)10/05/1164
American (M/D/Y)05/10/1164
Long formSunday 10th May 1164
RFC 2822Sun, 10 May 1164 00:00:00 GMT
Compact11640510
In wordsthe 10th of May, one thousand, one hundred and sixty-four
Julian calendar equivalent3 May 1164the date contemporaries would have written, before the Gregorian calendar existed
This date in other calendars
Hebrew9 Iyyar 4924the Hebrew calendar has been fully algorithmic since the ninth century, so this is exact
Islamic (tabular)8 Jumada II 559 AHthe tabular reckoning; the calendar in religious use begins each month on an actual crescent sighting, so expect a day either way
Persian (arithmetic)20 Ordibehesht 543the arithmetic (Birashk) calendar; the official Solar Hijri calendar takes its new year from the astronomical equinox at Tehran
Rata Die424,907days since 1 January 1 CE in the proleptic Gregorian calendar, the pivot every conversion here runs through
Unix time & day counts
Unix timestamp-25,423,718,400seconds since 1 January 1970, midnight UTC
Unix timestamp (ms)-25,423,718,400,000
Relationship to the epoch294,256 days before the Unix epoch
Julian Day Number2,146,332midnight UTC
Days since 1 January 1900-268,689
Days since 1 January 2000-305,213
Relative to today
These values depend on today’s date and change daily.
Today14 September 2026
Days ago314,966 days
In other terms862 years, 120 days and 12 hours
Weeks44995.1 weeks ago
Anniversary this year127 days ago
Years elapsed862 complete years
Seasons & signs
Zodiac signTaurusEarth sign
Chinese zodiac yearMonkeythe animal changes at Chinese New Year, not 1 January
Season (Northern Hemisphere)Springmeteorological seasons, by whole months
Season (Southern Hemisphere)Autumn
Easter Sunday that year19 April 1164
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