Recognised as Date
1 May 1426
- Monday
- Q2
- Common year
- Week 18
- Taurus
1 May 1426 falls on a Monday in the proleptic Gregorian calendar, which did not yet exist at the time. It is day 121 of 365 in 1426, falling in week 18 and quarter 2. Its Unix timestamp is -17,156,620,800. A full moon falls on this day.
Calendar position
Day of the weekMondayproleptic Gregorian; contemporaries used the Julian calendar and would have named a different day
Day of the month1st
Day of the year121 of 365
Days remaining in the year244
Days elapsed in the year120
ISO week numberWeek 18ISO 8601, weeks start on Monday
Week of the month1st
Occurrence in the month1st Monday
MonthMay (month 5 of 12)
QuarterQ2 1426
Year1426
Days in the month31
Leap yearNo, 365 days
This date in other formats
ISO 86011426-05-01
British (D/M/Y)01/05/1426
American (M/D/Y)05/01/1426
Long formMonday 1st May 1426
RFC 2822Mon, 01 May 1426 00:00:00 GMT
Compact14260501
In wordsthe 1st of May, one thousand, four hundred and twenty-six
Julian calendar equivalent22 April 1426the date contemporaries would have written, before the Gregorian calendar existed
This date in other calendars
Hebrew15 Iyyar 5186the Hebrew calendar has been fully algorithmic since the ninth century, so this is exact
Islamic (tabular)13 Jumada II 829 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 805the arithmetic (Birashk) calendar; the official Solar Hijri calendar takes its new year from the astronomical equinox at Tehran
Rata Die520,591days since 1 January 1 CE in the proleptic Gregorian calendar, the pivot every conversion here runs through
Unix time & day counts
Unix timestamp-17,156,620,800seconds since 1 January 1970, midnight UTC
Unix timestamp (ms)-17,156,620,800,000
Relationship to the epoch198,572 days before the Unix epoch
Julian Day Number2,242,016midnight UTC
Days since 1 January 1900-173,005
Days since 1 January 2000-209,529
Moon phase
PhaseFull 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 UTC100%≈to about 1%, by Meeus
Waxing or waningWaning
Moon age at 12:00 UTC14.4 dayssince the previous new moon
Previous new moon17 April 1426
Next new moon16 May 1426
This full moon1 May 1426
Next full moon30 May 1426
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.
Today21 September 2026
Days ago219,289 days
In other terms600 years and 139 days
Weeks31327.0 weeks ago
Anniversary this year143 days ago
Years elapsed600 complete years
Seasons & signs
Zodiac signTaurusEarth sign
Chinese zodiac yearHorsethe animal changes at Chinese New Year, not 1 January
Season (Northern Hemisphere)Springmeteorological seasons, by whole months
Season (Southern Hemisphere)Autumn
Easter Sunday that year2 April 1426
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