#include <iostream>
#include <chrono>
#include <ctime>

int main() {
    auto now = std::chrono::system_clock::now();
    std::time_t now_c = std::chrono::system_clock::to_time_t(now);
    std::cout << "현재 날짜 및 시간: " << std::ctime(&now_c) << std::endl;
    
    return 0;
}