Recognised as Date
1 December 1498
- Thursday
- Q4
- Common year
- Week 48
- Sagittarius
1 December 1498 falls on a Thursday in the proleptic Gregorian calendar, which did not yet exist at the time. It is day 335 of 365 in 1498, falling in week 48 and quarter 4. Its Unix timestamp is -14,865,984,000.
Calendar position
Day of the weekThursdayproleptic Gregorian; contemporaries used the Julian calendar and would have named a different day
Day of the month1st
Day of the year335 of 365
Days remaining in the year30
Days elapsed in the year334
ISO week numberWeek 48ISO 8601, weeks start on Monday
Week of the month1st
Occurrence in the month1st Thursday
QuarterQ4 1498
Year1498
Days in the month31
Leap yearNo, 365 days
This date in other formats
ISO 86011498-12-01
British (D/M/Y)01/12/1498
American (M/D/Y)12/01/1498
Long formThursday 1st December 1498
RFC 2822Thu, 01 Dec 1498 00:00:00 GMT
Compact14981201
In wordsthe 1st of December, one thousand, four hundred and ninety-eight
Julian calendar equivalent22 November 1498the date contemporaries would have written, before the Gregorian calendar existed
This date in other calendars
Hebrew8 Kislev 5259the Hebrew calendar has been fully algorithmic since the ninth century, so this is exact
Islamic (tabular)7 Rabi II 904 AHthe tabular reckoning; the calendar in religious use begins each month on an actual crescent sighting, so expect a day either way
Persian (arithmetic)10 Azar 877the arithmetic (Birashk) calendar; the official Solar Hijri calendar takes its new year from the astronomical equinox at Tehran
Rata Die547,103days since 1 January 1 CE in the proleptic Gregorian calendar, the pivot every conversion here runs through
Unix time & day counts
Unix timestamp-14,865,984,000seconds since 1 January 1970, midnight UTC
Unix timestamp (ms)-14,865,984,000,000
Relationship to the epoch172,060 days before the Unix epoch
Julian Day Number2,268,528midnight UTC
Days since 1 January 1900-146,493
Days since 1 January 2000-183,017
Relative to today
These values depend on today’s date and change daily.
Today16 September 2026
Days ago192,772 days
In other terms527 years, 285 days and 6 hours
Weeks27538.9 weeks ago
Anniversary this yearin 76 days
Years elapsed527 complete years
Seasons & signs
Zodiac signSagittariusFire sign
Chinese zodiac yearHorsethe animal changes at Chinese New Year, not 1 January
Season (Northern Hemisphere)Wintermeteorological seasons, by whole months
Season (Southern Hemisphere)Summer
Easter Sunday that year17 April 1498
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