Recognised as Date
1 May 1261
- Sunday
- Q2
- Common year
- Week 17
- Taurus
1 May 1261 falls on a Sunday in the proleptic Gregorian calendar, which did not yet exist at the time. It was day 121 of 365 in 1261, falling in week 17 and quarter 2. Its Unix timestamp is -22,363,430,400.
Calendar position
Day of the weekSundayproleptic Gregorian; contemporaries used the Julian calendar and would have named a different day
Day of the month1st
Day of the year121 of 365
Days remaining in the year244
Days elapsed in the year120
ISO week numberWeek 17ISO 8601, weeks start on Monday
Week of the month1st
Occurrence in the month1st Sunday
MonthMay (month 5 of 12)
QuarterQ2 1261
Year1261
Days in the month31
Leap yearNo, 365 days
This date in other formats
ISO 86011261-05-01
British (D/M/Y)01/05/1261
American (M/D/Y)05/01/1261
Long formSunday 1st May 1261
RFC 2822Sun, 01 May 1261 00:00:00 GMT
Compact12610501
In wordsthe 1st of May, one thousand, two hundred and sixty-one
Julian calendar equivalent24 April 1261the date contemporaries would have written, before the Gregorian calendar existed
This date in other calendars
Hebrew23 Iyyar 5021the Hebrew calendar has been fully algorithmic since the ninth century, so this is exact
Islamic (tabular)22 Jumada I 659 AHthe tabular reckoning; the calendar in religious use begins each month on an actual crescent sighting, so expect a day either way
Persian (arithmetic)12 Ordibehesht 640the arithmetic (Birashk) calendar; the official Solar Hijri calendar takes its new year from the astronomical equinox at Tehran
Rata Die460,327days since 1 January 1 CE in the proleptic Gregorian calendar, the pivot every conversion here runs through
Unix time & day counts
Unix timestamp-22,363,430,400seconds since 1 January 1970, midnight UTC
Unix timestamp (ms)-22,363,430,400,000
Relationship to the epoch258,836 days before the Unix epoch
Julian Day Number2,181,752midnight UTC
Days since 1 January 1900-233,269
Days since 1 January 2000-269,793
Relative to today
These values depend on today’s date and change daily.
Today16 September 2026
Days ago279,548 days
In other terms765 years, 131 days and 18 hours
Weeks39935.4 weeks ago
Anniversary this year138 days ago
Years elapsed765 complete years
Seasons & signs
Zodiac signTaurusEarth sign
Chinese zodiac yearRoosterthe animal changes at Chinese New Year, not 1 January
Season (Northern Hemisphere)Springmeteorological seasons, by whole months
Season (Southern Hemisphere)Autumn
Easter Sunday that year27 March 1261
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