How do I convert between time zones with tzdb in C++?

Converting between time zones in C++ can be efficiently done using the timezone database (tzdb). This guide provides a simple example to demonstrate how you can achieve this conversion.

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This example illustrates how to convert time between different time zones in C++ using the tzdb library.

#include <iostream> #include <chrono> #include <tzdb.h> int main() { // Create a time point representation for a specific date and time std::chrono::system_clock::time_point original_time = std::chrono::system_clock::now(); // Define the original and target time zones auto original_zone = tzdb::get_tzdb().at("America/New_York"); auto target_zone = tzdb::get_tzdb().at("Europe/London"); // Convert the original time into the target time zone auto target_time = tzdb::convert(original_time, original_zone, target_zone); // Output the result std::cout << "Original time: " << original_time << " in New York." << std::endl; std::cout << "Converted time: " << target_time << " in London." << std::endl; return 0; }

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