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May 20, 2011 21:40:51

2011

Year

05

Month


20

Day

21

Hour (24)


40

Minute

51

Second

Format

ISO 8601 prompt International standard for representing date and time. Widely used in web services, programming, and data exchange.
YYYY-MM-DD'T'HH:MM:SS±hh:mm
2011-05-20T21:40:51
ISO 8601 (Week) prompt Used in planning and reporting
YYYY-Www-D
2011-W20-5T21:40:51
RFC 3339 prompt Used in Internet protocols
YYYY-MM-DD'T'HH:mm:ss'Z'
2011-05-20T21:40:51Z
RFC 822 / RFC 2822 prompt Used in email protocols
ddd, DD MMM YYYY HH:mm:ss 'GMT'
Fri, 20 May 2011 21:40:51 +0000
RFC 7231 prompt The format aligns with RFC 822, but RFC 7231 specifies and standardizes its use in HTTP
Day, DD Mon YYYY HH:MM:SS GMT
Fri, 20 May 2011 21:40:51 +0000
UNIX Time (Epoch Time) prompt Widely used in programming
Seconds since January 1, 1970
1305927651
ISO 9075 prompt A standard related to SQL query language
YYYY-MM-DD HH:MM:SS
2011-05-20 21:40:51
USA prompt Date format commonly used in the USA
MM/DD/YYYY HH:MM:SS
05-20-2011 21:40:51
British/French, EU prompt Date format commonly used in Europe
DD/MM/YY HH:MM:SS
20/05/2011 21:40:51
German prompt Date format commonly used in Germany
DD.MM.YYYY HH:MM:SS
20.05.2011 21:40:51
Italian prompt Date format commonly used in Italy
DD-MM-YYYY HH:MM:SS
20-05-2011 21:40:51
Japan prompt Date format commonly used in Japan
YYYY/MM/DD HH:MM:SS
2011/05/20 21:40:51
Chinese Date prompt Format used to represent dates in the Chinese lunisolar calendar
SS (Animal) (M'th month), D, YYYY
04 (Rabbit) (5'th month), 20, 2011
Excel date/time prompt Used internally by Excel to enable easy calculations with dates and times
Dates and times in Excel are stored as floating-point numbers
40683.903368056
Microsoft Timestamp / FileTime prompt Used in Windows system APIs for file and directory timestamp handling
100-nanoseconds since Jan 1, 1601
129504012510000000
Text Date prompt Textual representation of a date
MMM DD, YYYY HH:MM:SS
May 20, 2011 21:40:51
Mac Timestamp prompt Date and time format used in macOS
Seconds since January 1, 2001
327620451
Mongo ObjectID prompt Unique identifier format used in MongoDB
12-byte hexadecimal number
4dd6dfe30000000000000000
Julian Day Number prompt Date format used in astronomy
Number of days since January 1, 4713 BC
2455702.40337

What day of week 20/05/2011?

20 May 2011 is Friday.

How long ago was 2011-05-20 21:40:51?

Current time is Monday, January 27, 2025, 22:39:50

Years 13
Months 164
Weeks 714
Days 5001
Hours 120024
Minutes 7201498
Seconds 432089939

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