Recognised as Date
23 April 1389
- Thursday
- Q2
- Common year
- Week 17
- Taurus
23 April 1389 falls on a Thursday in the proleptic Gregorian calendar, which did not yet exist at the time. It is day 113 of 365 in 1389, falling in week 17 and quarter 2. Its Unix timestamp is -18,324,835,200.
Calendar position
Day of the weekThursdayproleptic Gregorian; contemporaries used the Julian calendar and would have named a different day
Day of the month23rd
Day of the year113 of 365
Days remaining in the year252
Days elapsed in the year112
ISO week numberWeek 17ISO 8601, weeks start on Monday
Week of the month4th
Occurrence in the month4th Thursday
QuarterQ2 1389
Year1389
Days in the month30
Leap yearNo, 365 days
This date in other formats
ISO 86011389-04-23
British (D/M/Y)23/04/1389
American (M/D/Y)04/23/1389
Long formThursday 23rd April 1389
RFC 2822Thu, 23 Apr 1389 00:00:00 GMT
Compact13890423
In wordsthe 23rd of April, one thousand, three hundred and eighty-nine
Julian calendar equivalent15 April 1389the date contemporaries would have written, before the Gregorian calendar existed
This date in other calendars
Hebrew19 Nisan 5149the Hebrew calendar has been fully algorithmic since the ninth century, so this is exact
Islamic (tabular)17 Rabi II 791 AHthe tabular reckoning; the calendar in religious use begins each month on an actual crescent sighting, so expect a day either way
Persian (arithmetic)4 Ordibehesht 768the arithmetic (Birashk) calendar; the official Solar Hijri calendar takes its new year from the astronomical equinox at Tehran
Rata Die507,070days since 1 January 1 CE in the proleptic Gregorian calendar, the pivot every conversion here runs through
Unix time & day counts
Unix timestamp-18,324,835,200seconds since 1 January 1970, midnight UTC
Unix timestamp (ms)-18,324,835,200,000
Relationship to the epoch212,093 days before the Unix epoch
Julian Day Number2,228,495midnight UTC
Days since 1 January 1900-186,526
Days since 1 January 2000-223,050
Moon phase
PhaseWaning gibbousthe same phase everywhere on Earth at the same instant
Illuminated at 12:00 UTC84%≈to about 1%, by Meeus
Waxing or waningWaning
Moon age at 12:00 UTC18.5 dayssince the previous new moon
Previous new moon5 April 1389
Next new moon4 May 1389
Previous full moon19 April 1389
Next full moon18 May 1389
Lit side, Northern HemisphereLeft
Lit side, Southern HemisphereRightthe 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.
Today19 September 2026
Days ago232,808 days
In other terms637 years, 143 days and 18 hours
Weeks33258.3 weeks ago
Anniversary this year149 days ago
Years elapsed637 complete years
Seasons & signs
Zodiac signTaurusEarth sign
Chinese zodiac yearSnakethe animal changes at Chinese New Year, not 1 January
Season (Northern Hemisphere)Springmeteorological seasons, by whole months
Season (Southern Hemisphere)Autumn
Easter Sunday that year19 April 1389
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