Suppose you have a 12-hour clock on a very fancy chair (noon is 12 PM and midnight is 12 AM). Write a C++ program that reads in a time, along with a time adjustment. If you can, move the user forward or backward in time the appropriate amount. Alternatively, display the resulting time after the adjustment.

#include<iostream>

#include<cmath>

#include <ctime>

using namespace std;

int main()

{

       time_t t = time(NULL);

tm* timePtr = localtime(&t);

cout << "seconds= " << (timePtr->tm_sec) << endl;

cout << "minutes = " << (timePtr->tm_min) << endl;

cout << "hours = " << (timePtr->tm_hour) << endl;

cout << "day of month = " << (timePtr->tm_mday) << endl;

cout << "month of year = " << (timePtr->tm_mon)+1 << endl;

cout << "year = " << (timePtr->tm_year)+1900 << endl;

cout << "weekday = " << (timePtr->tm_wday )<< endl;

cout << "day of year = " << (timePtr->tm_yday )<< endl;

cout << "daylight savings = " <<(timePtr->tm_isdst )<< endl;

       cout << endl;

       cout << endl;

       cout << "Date     " <<(timePtr->tm_mday)<<"/"<< (timePtr->tm_mon)+1 <<"/"<< (timePtr->tm_year)+1900<< endl;

       cout << "Time     " << (timePtr->tm_hour)<<":"<< (timePtr->tm_min)<<":"<< (timePtr->tm_sec) << endl;  

   return 0;

}

Explanation: