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Dec 31, 2021 00:11:22

2021

Year

12

Month

31

Day

00

Hour (24)

11

Minute

22

Second

How long ago was

Format

ISO 8601 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	2021-12-31T00:11:22
ISO 8601 (Week) Used in planning and reporting YYYY-Www-D	2021-W52-5T00:11:22
RFC 3339 Used in Internet protocols YYYY-MM-DD'T'HH:mm:ss'Z'	2021-12-31T00:11:22Z
RFC 822 / RFC 2822 Used in email protocols ddd, DD MMM YYYY HH:mm:ss 'GMT'	Fri, 31 Dec 2021 00:11:22 +0000
RFC 7231 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, 31 Dec 2021 00:11:22 +0000
UNIX Time (Epoch Time) Widely used in programming Seconds since January 1, 1970	1640909482
ISO 9075 A standard related to SQL query language YYYY-MM-DD HH:MM:SS	2021-12-31 00:11:22
USA Date format commonly used in the USA MM/DD/YYYY HH:MM:SS	12-31-2021 00:11:22
British/French, EU Date format commonly used in Europe DD/MM/YY HH:MM:SS	31/12/2021 00:11:22
German Date format commonly used in Germany DD.MM.YYYY HH:MM:SS	31.12.2021 00:11:22
Italian Date format commonly used in Italy DD-MM-YYYY HH:MM:SS	31-12-2021 00:11:22
Japan Date format commonly used in Japan YYYY/MM/DD HH:MM:SS	2021/12/31 00:11:22
Chinese Date Format used to represent dates in the Chinese lunisolar calendar SS (Animal) (M'th month), D, YYYY	02 (Ox) (12'th month), 31, 2021
Excel date/time Used internally by Excel to enable easy calculations with dates and times Dates and times in Excel are stored as floating-point numbers	44561.007893519
Microsoft Timestamp / FileTime Used in Windows system APIs for file and directory timestamp handling 100-nanoseconds since Jan 1, 1601	132853830820000000
Text Date Textual representation of a date MMM DD, YYYY HH:MM:SS	Dec 31, 2021 00:11:22
Mac Timestamp Date and time format used in macOS Seconds since January 1, 2001	662602282
Mongo ObjectID Unique identifier format used in MongoDB 12-byte hexadecimal number	61ce4aaa0000000000000000
Julian Day Number Date format used in astronomy Number of days since January 1, 4713 BC	2459579.50789

What day of week 31/12/2021?

31 December 2021 is Friday.

How long ago was 2021-12-31 00:11:22?

Current time is Wednesday, February 5, 2025, 23:30:55

Years	3
Months	37
Weeks	161
Days	1132
Hours	27191
Minutes	1631479
Seconds	97888773

Pagination navigate

2021 Year

12 Month

31 Day

00 Hour (24)

11 Minute

22 Second

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