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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()
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]
Standard Time (SDT) and Daylight Saving Time (DST) offsets from UTC in hours and minutes. For zones in which Daylight Saving is not observed, the DST offset shown in this table is a simple duplication of the SDT offset.
Before then, py2exe was made only for Python 2, [4] and it was necessary to use an alternative like cx_Freeze for Python 3 code. Although this program transforms a .py file to an .exe, it does not make it run faster because py2exe bundles the Python bytecode without converting it to machine-code.
All Microsoft Windows versions since Windows 2000 include the Windows Time service (W32Time), [43] which has the ability to synchronize the computer clock to an NTP server. W32Time was originally implemented for the purpose of the Kerberos version 5 authentication protocol, which required time to be within 5 minutes of the correct value to ...
Unix time is used in the PE format for Windows executables. [21] Unix time is typically available in major programming languages and is widely used in desktop, mobile, and web application programming. Java provides an Instant object which holds a Unix timestamp in both seconds and nanoseconds. [22] Python provides a time library which uses Unix ...
On 21 March 2017, the PyPy project released version 5.7 of both PyPy and PyPy3, with the latter introducing beta-quality support for Python 3.5. [25] On 26 April 2018, version 6.0 was released, with support for Python 2.7 and 3.5 (still beta-quality on Windows). [26] On 11 February 2019, version 7.0 was released, with support for Python 2.7 and ...