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Etc/GMT+2: Canonical −02:00: −02:00-02 etcetera Sign is intentionally inverted. See the Etc area description. Etc/GMT+3: Canonical −03:00: −03:00-03 etcetera Sign is intentionally inverted. See the Etc area description. Etc/GMT+4: Canonical −04:00: −04:00-04 etcetera Sign is intentionally inverted. See the Etc area description. Etc ...
Software timekeeping systems vary widely in the resolution of time measurement; some systems may use time units as large as a day, while others may use nanoseconds.For example, for an epoch date of midnight UTC (00:00) on 1 January 1900, and a time unit of a second, the time of the midnight (24:00) between 1 January 1900 and 2 January 1900 is represented by the number 86400, the number of ...
ISO 8601 is an international standard covering the worldwide exchange and communication of date and time-related data.It is maintained by the International Organization for Standardization (ISO) and was first published in 1988, with updates in 1991, 2000, 2004, and 2019, and an amendment in 2022. [1]
PostgreSQL since version 7.2, released 2002-02-04, stores timestamp WITHOUT TIMEZONE as 64-bit. [31] [failed verification] Prior versions already stored timestamp as 64-bit. [citation needed] As of MySQL 8.0.28, released in January 2022, the functions FROM_UNIXTIME(), UNIX_TIMESTAMP(), and CONVERT_TZ() handle 64-bit values on platforms that ...
1 January 1970 (to 19 January 2038 prior to Linux 5.9) to 2 July 2486 (Since Linux 5.10) 1 January 1970 to 4 December AD 292,277,026,596 1 μs: 1 ns OS/2: DosGetDateTime() 10 ms 1 January 1980 to 31 December 2079 [18] Windows: GetSystemTime() 1 ms 1 January 1601 to 14 September 30828, 02:48:05.4775807 GetSystemTimeAsFileTime()
The maximum value of a signed 32-bit integer is 2 31 − 1, and the minimum value is −2 31, making it impossible to represent dates before 13 December 1901 (at 20:45:52 UTC) or after 19 January 2038 (at 03:14:07 UTC). The early cutoff can have an impact on databases that are storing historical information; in some databases where 32-bit Unix ...
The term "timestamp" derives from rubber stamps used in offices to stamp the current date, and sometimes time, in ink on paper documents, to record when the document was received. Common examples of this type of timestamp are a postmark on a letter or the "in" and "out" times on a time card .
Time at the server when the request arrived, in NTP timestamp format. Transmit Timestamp (xmt): 64 bits Time at the server when the response left, in NTP timestamp format. Extension Field: variable Optional field(s) for NTP extensions (see [5], Section 7.5). Key Identifier: 32 bits Unsigned integer designating an MD5 key shared by the client ...