std::chrono::current_zone
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                    |   Defined in header  <chrono>
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|   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.
See also
|    return the local time zone   (public member function of std::chrono::tzdb)  | |
|   accesses and controls the global time zone database information  (function)  |