Recognised as Date
1 May 1516
- Monday
- Q2
- Leap year
- Week 18
- Taurus
1 May 1516 falls on a Monday in the proleptic Gregorian calendar, which did not yet exist at the time. It is day 122 of 366 in 1516, a leap year, falling in week 18 and quarter 2. Its Unix timestamp is -14,316,480,000.
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 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 Monday
MonthMay (month 5 of 12)
QuarterQ2 1516
Year1516
Days in the month31
Leap yearYes, 366 days
This date in other formats
ISO 86011516-05-01
British (D/M/Y)01/05/1516
American (M/D/Y)05/01/1516
Long formMonday 1st May 1516
RFC 2822Mon, 01 May 1516 00:00:00 GMT
Compact15160501
In wordsthe 1st of May, one thousand, five hundred and sixteen
Julian calendar equivalent21 April 1516the date contemporaries would have written, before the Gregorian calendar existed
This date in other calendars
Hebrew19 Iyyar 5276the Hebrew calendar has been fully algorithmic since the ninth century, so this is exact
Islamic (tabular)18 Rabi I 922 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 895the arithmetic (Birashk) calendar; the official Solar Hijri calendar takes its new year from the astronomical equinox at Tehran
Rata Die553,463days since 1 January 1 CE in the proleptic Gregorian calendar, the pivot every conversion here runs through
Unix time & day counts
Unix timestamp-14,316,480,000seconds since 1 January 1970, midnight UTC
Unix timestamp (ms)-14,316,480,000,000
Relationship to the epoch165,700 days before the Unix epoch
Julian Day Number2,274,888midnight UTC
Days since 1 January 1900-140,133
Days since 1 January 2000-176,657
Moon phase
PhaseWaning gibbousthe same phase everywhere on Earth at the same instant
Illuminated at 12:00 UTC73%≈to about 1%, by Meeus
Waxing or waningWaning
Moon age at 12:00 UTC19.2 dayssince the previous new moon
Previous new moon12 April 1516
Next new moon11 May 1516
Previous full moon26 April 1516
Next full moon26 May 1516
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 ago186,415 days
In other terms510 years, 137 days and 12 hours
Weeks26630.7 weeks ago
Anniversary this year141 days ago
Years elapsed510 complete years
Seasons & signs
Zodiac signTaurusEarth sign
Chinese zodiac yearRatthe 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 1516
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