Recognised as Date
20 May 2011
- Friday
- Q2
- Common year
- Week 20
- Taurus
20 May 2011 falls on a Friday. It is day 140 of 365 in 2011, falling in week 20 and quarter 2. Its Unix timestamp is 1,305,849,600.
Calendar position
Day of the weekFriday
Day of the month20th
Day of the year140 of 365
Days remaining in the year225
Days elapsed in the year139
ISO week numberWeek 20ISO 8601, weeks start on Monday
Week of the month3rd
Occurrence in the month3rd Friday
MonthMay (month 5 of 12)
QuarterQ2 2011
Year2011
Days in the month31
Leap yearNo, 365 days
This date in other formats
ISO 86012011-05-20
British (D/M/Y)20/05/2011
American (M/D/Y)05/20/2011
Long formFriday 20th May 2011
RFC 2822Fri, 20 May 2011 00:00:00 GMT
Compact20110520
In wordsthe 20th of May, two thousand and eleven
This date in other calendars
Hebrew16 Iyyar 5771the Hebrew calendar has been fully algorithmic since the ninth century, so this is exact
Islamic (tabular)16 Jumada II 1432 AHthe tabular reckoning; the calendar in religious use begins each month on an actual crescent sighting, so expect a day either way
Persian (arithmetic)30 Ordibehesht 1390the arithmetic (Birashk) calendar; the official Solar Hijri calendar takes its new year from the astronomical equinox at Tehran
Rata Die734,277days since 1 January 1 CE in the proleptic Gregorian calendar, the pivot every conversion here runs through
Unix time & day counts
Unix timestamp1,305,849,600seconds since 1 January 1970, midnight UTC
Unix timestamp (ms)1,305,849,600,000
Relationship to the epoch15,114 days after the Unix epoch
Julian Day Number2,455,702midnight UTC
Days since 1 January 190040,681
Days since 1 January 20004,157
Moon phase
PhaseWaning gibbousthe same phase everywhere on Earth at the same instant
Illuminated at 12:00 UTC88%≈to about 1%, by Meeus
Waxing or waningWaning
Moon age at 12:00 UTC17.2 dayssince the previous new moon
Previous new moon3 May 2011, 06:51 UTC
Next new moon1 June 2011, 21:03 UTC
Previous full moon17 May 2011, 11:09 UTC
Next full moon15 June 2011, 20:13 UTC
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
Relative to today
These values depend on today’s date and change daily.
Today17 September 2026
Days ago5,599 days
In other terms15 years, 120 days and 6 hours
Weeks799.9 weeks ago
Anniversary this year120 days ago
Years elapsed15 complete years
Seasons & signs
Zodiac signTaurusEarth sign
Chinese zodiac yearRabbitthe animal changes at Chinese New Year, not 1 January
Season (Northern Hemisphere)Springmeteorological seasons, by whole months
Season (Southern Hemisphere)Autumn
Easter Sunday that year24 April 2011
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