Recognised as Date
29 February 1440
- Saturday
- Q1
- Leap year
- Week 9
- Pisces
29 February 1440 falls on a Saturday in the proleptic Gregorian calendar, which did not yet exist at the time. It was day 60 of 366 in 1440, a leap year, falling in week 9 and quarter 1. Its Unix timestamp is -16,720,128,000.
Calendar position
Day of the weekSaturdayproleptic Gregorian; contemporaries used the Julian calendar and would have named a different day
Day of the month29th
Day of the year60 of 366
Days remaining in the year306
Days elapsed in the year59
ISO week numberWeek 9ISO 8601, weeks start on Monday
Week of the month5th
Occurrence in the month5th Saturday, and the last of the month
QuarterQ1 1440
Year1440
Days in the month29
Leap yearYes, 366 days
This date in other formats
ISO 86011440-02-29
British (D/M/Y)29/02/1440
American (M/D/Y)02/29/1440
Long formSaturday 29th February 1440
RFC 2822Sat, 29 Feb 1440 00:00:00 GMT
Compact14400229
In wordsthe 29th of February, one thousand, four hundred and forty
Julian calendar equivalent20 February 1440the date contemporaries would have written, before the Gregorian calendar existed
This date in other calendars
Hebrew16 Adar 5200the Hebrew calendar has been fully algorithmic since the ninth century, so this is exact
Islamic (tabular)16 Ramadan 843 AHthe tabular reckoning; the calendar in religious use begins each month on an actual crescent sighting, so expect a day either way
Persian (arithmetic)9 Esfand 818the arithmetic (Birashk) calendar; the official Solar Hijri calendar takes its new year from the astronomical equinox at Tehran
Rata Die525,643days since 1 January 1 CE in the proleptic Gregorian calendar, the pivot every conversion here runs through
Unix time & day counts
Unix timestamp-16,720,128,000seconds since 1 January 1970, midnight UTC
Unix timestamp (ms)-16,720,128,000,000
Relationship to the epoch193,520 days before the Unix epoch
Julian Day Number2,247,068midnight UTC
Days since 1 January 1900-167,953
Days since 1 January 2000-204,477
Relative to today
These values depend on today’s date and change daily.
Today13 September 2026
Days ago214,229 days
In other terms586 years, 192 days and 12 hours
Weeks30604.1 weeks ago
Anniversary this year197 days ago
Years elapsed586 complete years
Seasons & signs
Zodiac signPiscesWater sign
Chinese zodiac yearMonkeythe animal changes at Chinese New Year, not 1 January
Season (Northern Hemisphere)Wintermeteorological seasons, by whole months
Season (Southern Hemisphere)Summer
Easter Sunday that year29 March 1440
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