Recognised as Date
1 January 1200
- Saturday
- Q1
- Leap year
- Week 52
- Capricorn
1 January 1200 falls on a Saturday in the proleptic Gregorian calendar, which did not yet exist at the time. It was day 1 of 366 in 1200, a leap year, falling in week 52 and quarter 1. Its Unix timestamp is -24,298,876,800.
Calendar position
Day of the weekSaturdayproleptic Gregorian; contemporaries used the Julian calendar and would have named a different day
Day of the month1st
Day of the year1 of 366
Days remaining in the year365
Days elapsed in the year0
ISO week numberWeek 52 of 1199ISO weeks can belong to the neighbouring year
Week of the month1st
Occurrence in the month1st Saturday
QuarterQ1 1200
Year1200
Days in the month31
Leap yearYes, 366 days
This date in other formats
ISO 86011200-01-01
British (D/M/Y)01/01/1200
American (M/D/Y)01/01/1200
Long formSaturday 1st January 1200
RFC 2822Sat, 01 Jan 1200 00:00:00 GMT
Compact12000101
In wordsthe 1st of January, one thousand, two hundred
Julian calendar equivalent25 December 1199the date contemporaries would have written, before the Gregorian calendar existed
This date in other calendars
Hebrew5 Tevet 4960the Hebrew calendar has been fully algorithmic since the ninth century, so this is exact
Islamic (tabular)5 Rabi I 596 AHthe tabular reckoning; the calendar in religious use begins each month on an actual crescent sighting, so expect a day either way
Persian (arithmetic)11 Dey 578the arithmetic (Birashk) calendar; the official Solar Hijri calendar takes its new year from the astronomical equinox at Tehran
Rata Die437,926days since 1 January 1 CE in the proleptic Gregorian calendar, the pivot every conversion here runs through
Unix time & day counts
Unix timestamp-24,298,876,800seconds since 1 January 1970, midnight UTC
Unix timestamp (ms)-24,298,876,800,000
Relationship to the epoch281,237 days before the Unix epoch
Julian Day Number2,159,351midnight UTC
Days since 1 January 1900-255,670
Days since 1 January 2000-292,194
Relative to today
These values depend on today’s date and change daily.
Today14 September 2026
Days ago301,947 days
In other terms826 years, 250 days and 12 hours
Weeks43135.3 weeks ago
Anniversary this year256 days ago
Years elapsed826 complete years
Seasons & signs
Zodiac signCapricornEarth 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 year9 April 1200
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