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Dec 21, 2015 23:49:43

2015

Year

12

Month


21

Day

23

Hour (24)


49

Minute

43

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
2015-12-21T23:49:43
ISO 8601 (Week) prompt Used in planning and reporting
YYYY-Www-D
2015-W52-1T23:49:43
RFC 3339 prompt Used in Internet protocols
YYYY-MM-DD'T'HH:mm:ss'Z'
2015-12-21T23:49:43Z
RFC 822 / RFC 2822 prompt Used in email protocols
ddd, DD MMM YYYY HH:mm:ss 'GMT'
Mon, 21 Dec 2015 23:49:43 +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
Mon, 21 Dec 2015 23:49:43 +0000
UNIX Time (Epoch Time) prompt Widely used in programming
Seconds since January 1, 1970
1450741783
ISO 9075 prompt A standard related to SQL query language
YYYY-MM-DD HH:MM:SS
2015-12-21 23:49:43
USA prompt Date format commonly used in the USA
MM/DD/YYYY HH:MM:SS
12-21-2015 23:49:43
British/French, EU prompt Date format commonly used in Europe
DD/MM/YY HH:MM:SS
21/12/2015 23:49:43
German prompt Date format commonly used in Germany
DD.MM.YYYY HH:MM:SS
21.12.2015 23:49:43
Italian prompt Date format commonly used in Italy
DD-MM-YYYY HH:MM:SS
21-12-2015 23:49:43
Japan prompt Date format commonly used in Japan
YYYY/MM/DD HH:MM:SS
2015/12/21 23:49:43
Chinese Date prompt Format used to represent dates in the Chinese lunisolar calendar
SS (Animal) (M'th month), D, YYYY
08 (Goat) (12'th month), 21, 2015
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
42359.992858796
Microsoft Timestamp / FileTime prompt Used in Windows system APIs for file and directory timestamp handling
100-nanoseconds since Jan 1, 1601
130952153830000000
Text Date prompt Textual representation of a date
MMM DD, YYYY HH:MM:SS
Dec 21, 2015 23:49:43
Mac Timestamp prompt Date and time format used in macOS
Seconds since January 1, 2001
472434583
Mongo ObjectID prompt Unique identifier format used in MongoDB
12-byte hexadecimal number
567890170000000000000000
Julian Day Number prompt Date format used in astronomy
Number of days since January 1, 4713 BC
2457378.49286

What day of week 21/12/2015?

21 December 2015 is Monday.

How long ago was 2015-12-21 23:49:43?

Current time is Sunday, December 15, 2024, 13:33:58

Years 8
Months 107
Weeks 468
Days 3281
Hours 78757
Minutes 4725464
Seconds 283527855

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