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2. Unix time - Wikipedia

   en.wikipedia.org/wiki/Unix_time

   Unix time[a] is a date and time representation widely used in computing. It measures time by the number of non- leap seconds that have elapsed since 00:00:00 UTC on 1 January 1970, the Unix epoch. In modern computing, values are sometimes stored with higher granularity, such as microseconds or nanoseconds.

3. Year 2038 problem - Wikipedia

   en.wikipedia.org/wiki/Year_2038_problem

   FreeBSD uses 64-bit time_t for all 32-bit and 64-bit architectures except 32-bit i386, which uses signed 32-bit time_t instead. [23] The x32 ABI for Linux (which defines an environment for programs with 32-bit addresses but running the processor in 64-bit mode) uses a 64-bit time_t. Since it was a new environment, there was no need for special ...

4. C date and time functions - Wikipedia

   en.wikipedia.org/wiki/C_date_and_time_functions

   The C date and time operations are defined in the time.h header file (ctime header in C++). returns the current time of the system as a time_t value, number of seconds, (which is usually time since an epoch, typically the Unix epoch). The value of the epoch is operating system dependent; 1900 and 1970 are often used. See RFC 868.

5. List of tz database time zones - Wikipedia

   en.wikipedia.org/wiki/List_of_tz_database_time_zones

   List of tz database time zones. The tz database partitions the world into regions where local clocks all show the same time. This map was made by combining version 2023d with OpenStreetMap data, using open source software. [1] This is a list of time zones from release 2024b of the tz database. [2]

6. List of Linux distributions - Wikipedia

   en.wikipedia.org/wiki/List_of_Linux_distributions

   This is an accepted version of this page This is the latest accepted revision, reviewed on 20 September 2024. List of software distributions using the Linux kernel This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these messages) This article relies excessively on references to primary sources. Please improve this ...

7. time (Unix) - Wikipedia

   en.wikipedia.org/wiki/Time_(Unix)

   In a popular Unix shell Bash, time is a special keyword, that can be put before a pipeline (or single command), that measures time of entire pipeline, not just a singular (first) command, and uses a different default format, and puts empty line before reporting times: 10000000 real0m0.078s user0m0.116s sys0m0.029s $.

8. Time formatting and storage bugs - Wikipedia

   en.wikipedia.org/wiki/Time_formatting_and...

   Time formatting and storage bugs. In computer science, data type limitations and software bugs can cause errors in time and date calculation or display. These are most commonly manifestations of arithmetic overflow, but can also be the result of other issues. The most well-known consequence of this type is the Y2K problem, but many other ...

9. stat (system call) - Wikipedia

   en.wikipedia.org/wiki/Stat_(system_call)

   stat (system call) stat command line. stat () is a Unix system call that returns file attributes about an inode. The semantics of stat () vary between operating systems. As an example, Unix command ls uses this system call to retrieve information on files that includes: atime: time of last access (ls -lu) mtime: time of last modification (ls -l ...