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Saturday, September 10, 2022

[FIXED] How to get current time and date in C++?

 September 10, 2022     c++, cross-platform, date, time     No comments   

Issue

Is there a cross-platform way to get the current date and time in C++?


Solution

Since C++ 11 you can use std::chrono::system_clock::now()

Example (copied from en.cppreference.com):

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

int main()
{
    auto start = std::chrono::system_clock::now();
    // Some computation here
    auto end = std::chrono::system_clock::now();
 
    std::chrono::duration<double> elapsed_seconds = end-start;
    std::time_t end_time = std::chrono::system_clock::to_time_t(end);
 
    std::cout << "finished computation at " << std::ctime(&end_time)
              << "elapsed time: " << elapsed_seconds.count() << "s"
              << std::endl;
}

This should print something like this:

finished computation at Mon Oct  2 00:59:08 2017
elapsed time: 1.88232s


Answered By - Frederick The Fool
Answer Checked By - Willingham (PHPFixing Volunteer)
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