std::chrono...k::from_utc(3)

📦 version 2024.07.05, in nixpkgs unstable, opensuse-leap 16.0

💅 std::chrono::gps_clock::from_utc

okay so real talk, bestie — this page lives in the C++ Standard Library man pages, and it's the whole glow-up moment where a utc_time gets to be a gps_time. Same instant, different clock, no drama. ✨

🌸 NAME

std::chrono::gps_clock::from_utc — literally just std::chrono::gps_clock::from_utc. that's the name. it's giving self-titled debut album. 💅

🎀 SYNOPSIS

template< class Duration >

static std::chrono::gps_time<std::common_type_t<Duration,
std::chrono::seconds>>

    from_utc( const std::chrono::utc_time<Duration>& ) noexcept;

(since C++20) — yes, this is a C++20 girly, she's new here and she's thriving 🦋

💖 DESCRIPTION

she converts the utc_time t into a gps_time that represents the exact same point in time. not a different moment. the same moment. just wearing a different clock's outfit. periodt. 🔥

⭐ RETURN VALUE

a std::chrono::gps_time representing the same point in time as t, computed as if by constructing a value of the return type from t.time_since_epoch() and subtracting 315964809s.

and bestie, in case you're wondering where that number came from (iykyk): 315964809 is the number of seconds between the epochs of the two clocks 👑

  • 1980-01-06 00:00:00 UTC — the epoch for gps_clock 🛰️
  • 1970-01-01 00:00:00 UTC — the epoch for utc_clock 🕰️

so yeah, she's just doing epoch math with extra steps. iconic.

🦋 EXAMPLE

This section is incomplete Reason: no example

no example yet, bestie 😭 not me showing up to the function with no demo. we're all waiting for the glow-up.

🌈 SEE ALSO

  • to_utc — converts a gps_time to utc_time (static) (public static member function) — the reverse trip, the return journey, the sequel 💜
  • clock_cast — convert time points of one clock to another (C++20) (function template) — the general-purpose little matchmaker for clocks 🫶

🍓 CATEGORY

  • Todo no example 🙈

and that's the whole page, bestie! ✨ from http://cppreference.com, dated 2024.06.10 — mwah, go convert some timestamps 💋🎀

📦 where this page comes from