How do I use calendar and time zones in C++20?

C++20 introduced a new library for date and time management, which includes support for calendars and time zones. This makes it easier to work with complex date and time manipulations, particularly when considering different locales and regions. Below, you'll find an example demonstrating how to use the new `` features in C++20.

#include #include #include int main() { using namespace std::chrono; // Get the current time in the system clock auto now = system_clock::now(); // Convert to time_point representing the current time in UTC auto utc_time = system_clock::to_time_t(now); // Print the current UTC time std::cout << "Current UTC time: " << std::put_time(std::gmtime(&utc_time), "%Y-%m-%d %H:%M:%S") << '\n'; // Getting local time zone auto local_time = zoned_time("local", now); // Print the current local time std::cout << "Current Local time: " << std::put_time(local_time, "%Y-%m-%d %H:%M:%S") << '\n'; return 0; }

C++20 calendar time zones date and time management modern C++ programming

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