Recognised as Date
1 May 1404
- Tuesday
- Q2
- Leap year
- Week 18
- Taurus
1 May 1404 falls on a Tuesday in the proleptic Gregorian calendar, which did not yet exist at the time. It is day 122 of 366 in 1404, a leap year, falling in week 18 and quarter 2. Its Unix timestamp is -17,850,844,800.
Calendar position
Day of the weekTuesdayproleptic Gregorian; contemporaries used the Julian calendar and would have named a different day
Day of the month1st
Day of the year122 of 366
Days remaining in the year244
Days elapsed in the year121
ISO week numberWeek 18ISO 8601, weeks start on Monday
Week of the month1st
Occurrence in the month1st Tuesday
MonthMay (month 5 of 12)
QuarterQ2 1404
Year1404
Days in the month31
Leap yearYes, 366 days
This date in other formats
ISO 86011404-05-01
British (D/M/Y)01/05/1404
American (M/D/Y)05/01/1404
Long formTuesday 1st May 1404
RFC 2822Tue, 01 May 1404 00:00:00 GMT
Compact14040501
In wordsthe 1st of May, one thousand, four hundred and four
Julian calendar equivalent22 April 1404the date contemporaries would have written, before the Gregorian calendar existed
This date in other calendars
Hebrew11 Iyyar 5164the Hebrew calendar has been fully algorithmic since the ninth century, so this is exact
Islamic (tabular)11 Shawwal 806 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 Ordibehesht 783the arithmetic (Birashk) calendar; the official Solar Hijri calendar takes its new year from the astronomical equinox at Tehran
Rata Die512,556days since 1 January 1 CE in the proleptic Gregorian calendar, the pivot every conversion here runs through
Unix time & day counts
Unix timestamp-17,850,844,800seconds since 1 January 1970, midnight UTC
Unix timestamp (ms)-17,850,844,800,000
Relationship to the epoch206,607 days before the Unix epoch
Julian Day Number2,233,981midnight UTC
Days since 1 January 1900-181,040
Days since 1 January 2000-217,564
Moon phase
PhaseWaxing gibbousthe same phase everywhere on Earth at the same instant
Illuminated at 12:00 UTC91%≈to about 1%, by Meeus
Waxing or waningWaxing
Moon age at 12:00 UTC12.5 dayssince the previous new moon
Previous new moon19 April 1404
Next new moon18 May 1404
Previous full moon4 April 1404
Next full moon4 May 1404
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.
Today17 September 2026
Days ago227,320 days
In other terms622 years, 134 days and 12 hours
Weeks32474.3 weeks ago
Anniversary this year139 days ago
Years elapsed622 complete years
Seasons & signs
Zodiac signTaurusEarth sign
Chinese zodiac yearMonkeythe animal changes at Chinese New Year, not 1 January
Season (Northern Hemisphere)Springmeteorological seasons, by whole months
Season (Southern Hemisphere)Autumn
Easter Sunday that year8 April 1404
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