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  2. Python syntax and semantics - Wikipedia

    en.wikipedia.org/wiki/Python_syntax_and_semantics

    Python supports a wide variety of string operations. Strings in Python are immutable, so a string operation such as a substitution of characters, that in other programming languages might alter the string in place, returns a new string in Python. Performance considerations sometimes push for using special techniques in programs that modify ...

  3. List of tz database time zones - Wikipedia

    en.wikipedia.org/wiki/List_of_tz_database_time_zones

    The UTC offsets are based on the current or upcoming database rules. This table does not attempt to document any of the historical data which resides in the database. In Ireland , what Irish law designates as "standard time" is observed during the summer, with clocks turned one hour ahead of UTC.

  4. Unix time - Wikipedia

    en.wikipedia.org/wiki/Unix_time

    For example, 00:00:00 UTC on 1 January 1971 is represented in Unix time as 31 536 000. Negative values, on systems that support them, indicate times before the Unix epoch, with the value decreasing by 1 for every non-leap second before the epoch. For example, 00:00:00 UTC on 1 January 1969 is represented in Unix time as −31 536 000.

  5. Data Format Description Language - Wikipedia

    en.wikipedia.org/wiki/Data_Format_Description...

    Data Format Description Language (DFDL, often pronounced daff-o-dil) is a modeling language for describing general text and binary data in a standard way. It was published as an Open Grid Forum Recommendation [1] in February 2021, and in April 2024 was published as an ISO standard.

  6. C date and time functions - Wikipedia

    en.wikipedia.org/wiki/C_date_and_time_functions

    converts a string with time information to a struct tm: wcsftime: converts a struct tm object to custom wide string textual representation gmtime: converts a time_t value to calendar time expressed as Coordinated Universal Time [5] localtime: converts a time_t value to calendar time expressed as local time mktime: converts calendar time to a ...

  7. FlatBuffers - Wikipedia

    en.wikipedia.org/wiki/FlatBuffers

    FlatBuffers can be used in software written in C++, C#, C, Go, Java, JavaScript, Kotlin, Lobster, Lua, PHP, Python, Rust, Swift, and TypeScript. The schema compiler runs on Android , Microsoft Windows , macOS , and Linux , [ 3 ] but games and other programs use FlatBuffers for serialization work on many other operating systems as well ...

  8. Opaque data type - Wikipedia

    en.wikipedia.org/wiki/Opaque_data_type

    For example, the standard library that forms part of the specification of the C programming language provides functions for file input and output that return or take values of type "pointer to FILE" that represent file streams (see C file input/output), but the concrete implementation of the type FILE is not specified. [3]

  9. UTC offset - Wikipedia

    en.wikipedia.org/wiki/UTC_offset

    The most extreme example of this is time in China, which applies a single standard time offset of UTC+08:00 (eight hours ahead of Coordinated Universal Time), even though China spans five geographical time zones. The UTC offset (or time offset) is an amount of time added to Coordinated Universal Time (UTC) time to specify the time at a given ...