Recognised as Date
21 May 1988
- Saturday
- Q2
- Leap year
- Week 20
- Gemini
21 May 1988 was a Saturday. It was day 142 of 366 in 1988, a leap year, falling in week 20 and quarter 2. Its Unix timestamp is 580,176,000.
Calendar position
Day of the weekSaturday
Day of the month21st
Day of the year142 of 366
Days remaining in the year224
Days elapsed in the year141
ISO week numberWeek 20ISO 8601, weeks start on Monday
Week of the month3rd
Occurrence in the month3rd Saturday
MonthMay (month 5 of 12)
QuarterQ2 1988
Year1988
Days in the month31
Leap yearYes, 366 days
This date in other formats
ISO 86011988-05-21
British (D/M/Y)21/05/1988
American (M/D/Y)05/21/1988
Long formSaturday 21st May 1988
RFC 2822Sat, 21 May 1988 00:00:00 GMT
Compact19880521
In wordsthe 21st of May, one thousand, nine hundred and eighty-eight
This date in other calendars
Hebrew5 Sivan 5748the Hebrew calendar has been fully algorithmic since the ninth century, so this is exact
Islamic (tabular)4 Shawwal 1408 AHthe tabular reckoning; the calendar in religious use begins each month on an actual crescent sighting, so expect a day either way
Persian (arithmetic)31 Ordibehesht 1367the arithmetic (Birashk) calendar; the official Solar Hijri calendar takes its new year from the astronomical equinox at Tehran
Rata Die725,878days since 1 January 1 CE in the proleptic Gregorian calendar, the pivot every conversion here runs through
Unix time & day counts
Unix timestamp580,176,000seconds since 1 January 1970, midnight UTC
Unix timestamp (ms)580,176,000,000
Relationship to the epoch6,715 days after the Unix epoch
Julian Day Number2,447,303midnight UTC
Days since 1 January 190032,282
Days since 1 January 2000-4,242
Relative to today
These values depend on today’s date and change daily.
Today15 September 2026
Days ago13,996 days
In other terms38 years, 116 days and 12 hours
Weeks1999.4 weeks ago
Anniversary this year117 days ago
Years elapsed38 complete years
Seasons & signs
Zodiac signGeminiAir sign
Chinese zodiac yearDragonthe animal changes at Chinese New Year, not 1 January
Season (Northern Hemisphere)Springmeteorological seasons, by whole months
Season (Southern Hemisphere)Autumn
Easter Sunday that year3 April 1988
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