Recognised as Date
1 January 1064
- Friday
- Q1
- Leap year
- Week 53
- Capricorn
1 January 1064 falls on a Friday in the proleptic Gregorian calendar, which did not yet exist at the time. It is day 1 of 366 in 1064, a leap year, falling in week 53 and quarter 1. Its Unix timestamp is -28,590,624,000.
Calendar position
Day of the weekFridayproleptic 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 53 of 1063ISO weeks can belong to the neighbouring year
Week of the month1st
Occurrence in the month1st Friday
QuarterQ1 1064
Year1064
Days in the month31
Leap yearYes, 366 days
This date in other formats
ISO 86011064-01-01
British (D/M/Y)01/01/1064
American (M/D/Y)01/01/1064
Long formFriday 1st January 1064
RFC 2822Fri, 01 Jan 1064 00:00:00 GMT
Compact10640101
In wordsthe 1st of January, one thousand and sixty-four
Julian calendar equivalent26 December 1063the date contemporaries would have written, before the Gregorian calendar existed
This date in other calendars
Hebrew4 Shevat 4824the Hebrew calendar has been fully algorithmic since the ninth century, so this is exact
Islamic (tabular)2 Muharram 456 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 442the arithmetic (Birashk) calendar; the official Solar Hijri calendar takes its new year from the astronomical equinox at Tehran
Rata Die388,253days since 1 January 1 CE in the proleptic Gregorian calendar, the pivot every conversion here runs through
Unix time & day counts
Unix timestamp-28,590,624,000seconds since 1 January 1970, midnight UTC
Unix timestamp (ms)-28,590,624,000,000
Relationship to the epoch330,910 days before the Unix epoch
Julian Day Number2,109,678midnight UTC
Days since 1 January 1900-305,343
Days since 1 January 2000-341,867
Moon phase
PhaseWaxing crescentthe same phase everywhere on Earth at the same instant
Illuminated at 12:00 UTC14%≈to about 1%, by Meeus
Waxing or waningWaxing
Moon age at 12:00 UTC3.9 dayssince the previous new moon
Previous new moon28 December 1063
Next new moon27 January 1064
Previous full moon14 December 1063
Next full moon13 January 1064
Lit side, Northern HemisphereRight
Lit side, Southern HemisphereLeftthe same Moon seen from the other side of the equator; near the equator the lit side points up or down rather than to one side
PrecisionDates onlybefore 1700 or after 2150 the Earth's rotation is not known well enough to give a time, and a phase near midnight can land a day either side
Relative to today
These values depend on today’s date and change daily.
Today25 October 2026
Days ago351,661 days
In other terms962 years, 290 days and 12 hours
Weeks50237.3 weeks ago
Anniversary this year297 days ago
Years elapsed962 complete years
Seasons & signs
Zodiac signCapricornEarth sign
Chinese zodiac yearDragonthe animal changes at Chinese New Year, not 1 January
Season (Northern Hemisphere)Wintermeteorological seasons, by whole months
Season (Southern Hemisphere)Summer
Easter Sunday that year17 April 1064
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