Namespaces
Variants
Actions

std::chrono::current_zone

From cppreference.com
< cpp‎ | chrono
 
 
Date and time library
(C++11)
(C++20)
(C++11)
(C++11)
(C++11)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)(C++20)
(C++20)(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)(C++20)
(C++20)

(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
current_zone
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
 
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().

[edit] Exceptions

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

[edit] Notes

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

[edit] Example

Run this code
#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年09月13日 19:46:42.249182012 MAGT

[edit] See also

return the local time zone
(public member function of std::chrono::tzdb) [edit]
accesses and controls the global time zone database information
(function) [edit]
Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/chrono/current_zone&oldid=180406"

AltStyle によって変換されたページ (->オリジナル) /