Recognised as Date
17 May 1339
- Sunday
- Q2
- Common year
- Week 20
- Taurus
17 May 1339 falls on a Sunday in the proleptic Gregorian calendar, which did not yet exist at the time. It is day 137 of 365 in 1339, falling in week 20 and quarter 2. Its Unix timestamp is -19,900,684,800. A new moon falls on this day.
Calendar position
Day of the weekSundayproleptic Gregorian; contemporaries used the Julian calendar and would have named a different day
Day of the month17th
Day of the year137 of 365
Days remaining in the year228
Days elapsed in the year136
ISO week numberWeek 20ISO 8601, weeks start on Monday
Week of the month3rd
Occurrence in the month3rd Sunday
MonthMay (month 5 of 12)
QuarterQ2 1339
Year1339
Days in the month31
Leap yearNo, 365 days
This date in other formats
ISO 86011339-05-17
British (D/M/Y)17/05/1339
American (M/D/Y)05/17/1339
Long formSunday 17th May 1339
RFC 2822Sun, 17 May 1339 00:00:00 GMT
Compact13390517
In wordsthe 17th of May, one thousand, three hundred and thirty-nine
Julian calendar equivalent9 May 1339the date contemporaries would have written, before the Gregorian calendar existed
This date in other calendars
Hebrew1 Sivan 5099the Hebrew calendar has been fully algorithmic since the ninth century, so this is exact
Islamic (tabular)28 Shawwal 739 AHthe tabular reckoning; the calendar in religious use begins each month on an actual crescent sighting, so expect a day either way
Persian (arithmetic)27 Ordibehesht 718the arithmetic (Birashk) calendar; the official Solar Hijri calendar takes its new year from the astronomical equinox at Tehran
Rata Die488,831days since 1 January 1 CE in the proleptic Gregorian calendar, the pivot every conversion here runs through
Unix time & day counts
Unix timestamp-19,900,684,800seconds since 1 January 1970, midnight UTC
Unix timestamp (ms)-19,900,684,800,000
Relationship to the epoch230,332 days before the Unix epoch
Julian Day Number2,210,256midnight UTC
Days since 1 January 1900-204,765
Days since 1 January 2000-241,289
Moon phase
PhaseNew moonthe instant falls on this UTC day; in time zones far enough east or west the local date is a day either side
Illuminated at 12:00 UTC0%≈to about 1%, by Meeus
Waxing or waningWaxing
Moon age at 12:00 UTC0 dayssince the previous new moon
This new moon17 May 1339
Next new moon16 June 1339
Previous full moon2 May 1339
Next full moon31 May 1339
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 ago251,047 days
In other terms687 years, 120 days and 6 hours
Weeks35863.9 weeks ago
Anniversary this year125 days ago
Years elapsed687 complete years
Seasons & signs
Zodiac signTaurusEarth sign
Chinese zodiac yearRabbitthe animal changes at Chinese New Year, not 1 January
Season (Northern Hemisphere)Springmeteorological seasons, by whole months
Season (Southern Hemisphere)Autumn
Easter Sunday that year5 April 1339
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