Recognised as Date
1 December 1422
- Sunday
- Q4
- Common year
- Week 48
- Sagittarius
1 December 1422 falls on a Sunday in the proleptic Gregorian calendar, which did not yet exist at the time. It was day 335 of 365 in 1422, falling in week 48 and quarter 4. Its Unix timestamp is -17,264,361,600.
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 year335 of 365
Days remaining in the year30
Days elapsed in the year334
ISO week numberWeek 48ISO 8601, weeks start on Monday
Week of the month1st
Occurrence in the month1st Sunday
QuarterQ4 1422
Year1422
Days in the month31
Leap yearNo, 365 days
This date in other formats
ISO 86011422-12-01
British (D/M/Y)01/12/1422
American (M/D/Y)12/01/1422
Long formSunday 1st December 1422
RFC 2822Sun, 01 Dec 1422 00:00:00 GMT
Compact14221201
In wordsthe 1st of December, one thousand, four hundred and twenty-two
Julian calendar equivalent22 November 1422the date contemporaries would have written, before the Gregorian calendar existed
This date in other calendars
Hebrew8 Kislev 5183the Hebrew calendar has been fully algorithmic since the ninth century, so this is exact
Islamic (tabular)7 Dhu al-Hijjah 825 AHthe tabular reckoning; the calendar in religious use begins each month on an actual crescent sighting, so expect a day either way
Persian (arithmetic)10 Azar 801the arithmetic (Birashk) calendar; the official Solar Hijri calendar takes its new year from the astronomical equinox at Tehran
Rata Die519,344days since 1 January 1 CE in the proleptic Gregorian calendar, the pivot every conversion here runs through
Unix time & day counts
Unix timestamp-17,264,361,600seconds since 1 January 1970, midnight UTC
Unix timestamp (ms)-17,264,361,600,000
Relationship to the epoch199,819 days before the Unix epoch
Julian Day Number2,240,769midnight UTC
Days since 1 January 1900-174,252
Days since 1 January 2000-210,776
Relative to today
These values depend on today’s date and change daily.
Today15 September 2026
Days ago220,530 days
In other terms603 years, 284 days and 6 hours
Weeks31504.3 weeks ago
Anniversary this yearin 77 days
Years elapsed603 complete years
Seasons & signs
Zodiac signSagittariusFire sign
Chinese zodiac yearTigerthe animal changes at Chinese New Year, not 1 January
Season (Northern Hemisphere)Wintermeteorological seasons, by whole months
Season (Southern Hemisphere)Summer
Easter Sunday that year21 April 1422
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