std::chrono::current_zone(3)

✨ std::chrono::current_zone ✨

okay bestie, this is the std::chrono::current_zone(3) page from the C++ Standard Libary man pages — yes, the header really spells it “Libary,” and we’re preserving the source no cap 💀. It’s giving “tiny but mighty C++ time zone moment,” and honestly? iconic 🎀

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💖 NAME 💖

std::chrono::current_zone — literally std::chrono::current_zone, bestie. That’s the whole name. Short, sweet, no notes ✨

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🌸 Synopsis 🌸

Defined in header <chrono> — yes, the chrono girlies know 🕰️

const std::chrono::time_zone* current_zone();  (since C++20)

It’s the convenience function for obtaining your local time zone from the time zone database. Equivalent to std::chrono::get_tzdb().current_zone(). Lowkey a shortcut, highkey useful 💅

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🫶 Exceptions 🫶

bestie, listen: std::runtime_error if this is the first reference to the time zone database and the time zone database cannot be initialized. That’s the “the vibe check failed” case 😭

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🧚 Notes 🧚

A call to this function that is the first reference to the time zone database will cause it to be initialized. So yeah, first touch = init time. Not me accidentally waking up the whole database on the first call 🙈✨

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🌈 Example 🌈

       // Run this code

        #include <chrono>
        #include <iostream>

        int main() {
            const std::chrono::zoned_time cur_time{
       std::chrono::current_zone(),
                                                    std::chrono::system_clock::now()
       };
            std::cout << cur_time << '\n';
        }

Possible output:

2021-09-13 19:46:42.249182012 MAGT

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👑 See also 👑

• current_zone — return the local time zone (public member function of std::chrono::tzdb)
• get_tzdb
• get_tzdb_list — accesses and controls the global time zone database information
• reload_tzdb — (function)
• remote_version — (C++20)

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mwah 💋 this page was served from http://cppreference.com, version/date 2024.06.10, and its title is std::chrono::current_zone(3). Now go forth and get your local time zone, bestie — periodt 💖🦋✨