#include <iostream>
#include "cctz/civil_time.h"
#include "cctz/time_zone.h"


// 时区转换库
// https://github.com/google/cctz

int test() {
    for (cctz::civil_day d(2016, 2, 1); d < cctz::civil_month(2016, 3); ++d) {
        std::cout << "Hello " << d;
        if (d.day() == 29) {
            std::cout << " <- leap day is a " << cctz::get_weekday(d);
        }
        std::cout << "\n";
    }

    cctz::time_zone nyc;
    cctz::load_time_zone("America/New_York", &nyc);

    // Converts the input civil time in NYC to an absolute time.
    const auto moon_walk =
        cctz::convert(cctz::civil_second(1969, 7, 20, 22, 56, 0), nyc);

    std::cout << "Moon walk in NYC: "
        << cctz::format("%Y-%m-%d %H:%M:%S %Ez\n", moon_walk, nyc);

    cctz::time_zone syd;
    if (!cctz::load_time_zone("Australia/Sydney", &syd)) return -1;
    std::cout << "Moon walk in SYD: "
        << cctz::format("%Y-%m-%d %H:%M:%S %Ez\n", moon_walk, syd);
}

参考

GitHub - google/cctz: CCTZ is a C++ library for translating between absolute and civil times using the rules of a time zone.

创作不易，小小的支持一下吧！