std::chrono::current_zone

Defined in header `<chrono>`
const std::chrono::time_zone* current_zone();		(since C++20)

Convenience function for obtaining local time zone from the time zone database. Equivalent to std::chrono::get_tzdb().current_zone().

Exceptions

std::runtime_error if this is the first reference to the time zone database and the time zone database cannot be initialized.

Notes

A call to this function that is the first reference to the time zone database will cause it to be initialized.

Example

#include <chrono>
#include <iostream>

int main()
{
    try
    {
        const std::chrono::zoned_time cur_time
        {
            std::chrono::current_zone(), // may throw
            std::chrono::system_clock::now()
        };
        std::cout << cur_time << '\n';
    }
    catch(const std::runtime_error& ex)
    {
        std::cerr << ex.what() << '\n';        
    }
}

Possible output:

2021-09-13 19:46:42.249182012 MAGT

current_zone	return the local time zone (public member function of `std::chrono::tzdb`)
get_tzdbget_tzdb_listreload_tzdbremote_version (C++20)	accesses and controls the global time zone database information (function)

std::chrono::current_zone

Exceptions

Notes

Example

See also