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On 5 January 1975, the 12-bit field that had been used for dates in the TOPS-10 operating system for DEC PDP-10 computers overflowed, in a bug known as "DATE75". The field value was calculated by taking the number of years since 1964, multiplying by 12, adding the number of months since January, multiplying by 31, and adding the number of days since the start of the month; putting 2 12 − 1 ...
The leap year problem (also known as the leap year bug or the leap day bug) is a problem for both digital (computer-related) and non-digital documentation and data storage situations which results from errors in the calculation of which years are leap years, or from manipulating dates without regard to the difference between leap years and common years.
The year 2038 problem (also known as Y2038, [1] Y2K38, Y2K38 superbug or the Epochalypse [2] [3]) is a time computing problem that leaves some computer systems unable to represent times after 03:14:07 UTC on 19 January 2038.
Python 2.6 was released to coincide with Python 3.0, and included some features from that release, as well as a "warnings" mode that highlighted the use of features that were removed in Python 3.0. [ 28 ] [ 10 ] Similarly, Python 2.7 coincided with and included features from Python 3.1, [ 29 ] which was released on June 26, 2009.
as a date, for example "2020-02-14" (which will be interpreted as midnight of the day in question), or as a datetime string like "2020-02-14T12:26:53+02:00" (which can be found by running rdiff-backup --list-increments <backup> first) as a time span, for example "1M" will restore the files as they were one month ago
A signed 32-bit value covers about 68 years before and after the 1970-01-01 epoch. The minimum representable date is Friday 1901-12-13, and the maximum representable date is Tuesday 2038-01-19. One second after 2038-01-19T03:14:07Z this representation will overflow in what is known as the year 2038 problem.
Python 3.0, released in 2008, was a major revision not completely backward-compatible with earlier versions. Python 2.7.18, released in 2020, was the last release of Python 2. [37] Python consistently ranks as one of the most popular programming languages, and has gained widespread use in the machine learning community. [38] [39] [40] [41]
00:00:00.000 1 January 1904 Get Date/Time in Seconds: 1 ms 00:00:00.000 1 January 1904 Objective-C [NSDate timeIntervalSinceReferenceDate] < 1 ms [40] 1 January 2001 ±10,000 Years [40] OCaml: Unix.time() 1 s 1 January 1970 Unix.gettimeofday() 1 μs Extended Pascal: GetTimeStamp() 1 s (*) Turbo Pascal: GetTime() GetDate() 10 ms (*) Perl: time ...