Example of std::chrono::day in C++

// C++ Program for demonstrating the use of std::chrono::day
#include <chrono>
#include <ctime>
#include <iostream>

int main()
{
    using namespace std;
    using namespace std::chrono;

    // Get the current time as a time_point
    auto now = system_clock::now();
    auto today = floor<days>(now); // Truncate to days

    // Get the calendar date
    year_month_day ymd = year_month_day{ today };
    day d = ymd.day();

    // Output the day of the month
    cout << "Day of the month:-" << endl;
    cout << "Today: " << static_cast<unsigned>(d) << endl;
    d++;
    cout << "Tommorow: " << static_cast<unsigned>(d)
         << endl;

    return 0;
}