YesToDafT, C++ (gcc)

YesToDafT

//g++  7.4.0
////////////////////////////////////////////////////////////////////////////////YesToDafT: understanding std::chrono library,demonstration of conversion from std::chrono::time_point to std::time_t, use of localtime(&t) and ctime(&t),use of std::ratio etc
//this code is created by Rezaul Hoque on June 02,2022;
//contact:jewelmrh@yahoo.com;Dhaka,Bangladesh;https://rezaulhoque.wordpress.com,https://hoquestake.blogspot.com
//note: codes shared by Rezaul Hoque on rextester are not for sale; they are created and shared to facilitate the algorithm learning process; many like Hoque use this platform to practice programming ;Rezaul hopes his contribution helps others to fine tune their learning;
//////////////////////////////////////////////////////////////////////////////
#include <iostream>
#include <iomanip>
#include <chrono>
#include <ctime>
#include <ratio>

int main()
{
using namespace std::literals;
    std::chrono:: duration<int,std::ratio<60*60*24>> Two (2);
std::chrono:: duration<int,std::ratio<60*60*24>> One (1);
std::chrono::system_clock::time_point curDay=std::chrono:: system_clock::now();
std::chrono::system_clock::time_point DafTom=curDay+Two;
std::chrono::system_clock::time_point 
 Tom=curDay+One;

std::time_t t;

t=std::chrono::system_clock::to_time_t(curDay);
std::cout<<"Today is "<<ctime(&t)<<" \n";
std::cout<<"Another way to say today is  "<<std::put_time(std::localtime(&t),"%F %T\n");

t=std::chrono::system_clock::to_time_t(curDay -24h);
std::cout<<"\nYesterday was "<<ctime(&t)<<" \n";
std::cout<<"Another way to say yesterday was  "<<std::put_time(std::localtime(&t),"%F %T\n");

t=std::chrono::system_clock::to_time_t(curDay -48h);
std::cout<<"\nDay before yesterday was "<<ctime(&t)<<" \n";
std::cout<<"Another way to say day before yesterday was  "<<std::put_time(std::localtime(&t),"%F %T\n");

t=std::chrono::system_clock::to_time_t(Tom);
std::cout<<"\nTomorrow will be "<<ctime(&t)<<" \n";
std::cout<<"Another way to say tomorrow will be  "<<std::put_time(std::localtime(&t),"%F %T\n");

t=std::chrono::system_clock::to_time_t(DafTom);
std::cout<<"\nDay after tomorrow will be "<<ctime(&t)<<" \n";
std::cout<<"Another way to say day after tomorrow will be "<<std::put_time(std::localtime(&t),"%F %T\n");
return 0;

}


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