#include <iostream>
#include <chrono>
std::string systemDateTimeToString(std::chrono::system_clock::time_point &t) {
std::time_t time = std::chrono::system_clock::to_time_t(t);
std::string s = std::ctime(&time);
return s;
}
int main() {
auto current_time = std::chrono::system_clock::now();
std::cout << systemDateTimeToString(current_time);
return 0;
}
/*
run:
Sun May 16 09:49:44 2021
*/