[Valmont]

 #include <iostream>
#include <string>
#include <climits>

using std::cin;
using std::cout;
using std::numeric_limits;
using std::streamsize;
using std::string;
using std::endl;

//Optional function: depends on IDE. Remove if not needed. void wait_for_enter();

//Additional helper. Remove if not needed. void reset_istream();

//-- Define a day, hour and minute in terms of seconds. "static" is optional right now. static const unsigned SECONDS_IN_DAY = 86400;
static const unsigned SECONDS_IN_HOUR = 3600;
static const unsigned SECONDS_IN_MINUTES = 60;

int main(int argc, char *argv[])
{
   unsigned TotalSeconds;
   //Get input data.
   cout << "Enter Total amount of Seconds: ";
   cin >> TotalSeconds;
   
   // Using the following formula: // Days = TotalSeconds / SECONDS_IN_DAY // Hours = (TotalSeconds % SECONDS_IN_DAY) / SECONDS_IN_HOUR // Minutes = ((TotalSeconds % SECONDS_IN_DAY) % SECONDS_IN_HOUR) / SECONDS_IN_MINUTES // Seconds = ((TotalSeconds % SECONDS_IN_DAY) % SECONDS_IN_HOUR) % SECONDS_IN_MINUTES unsigned Days = TotalSeconds / SECONDS_IN_DAY;
   unsigned RemainingSeconds = TotalSeconds % SECONDS_IN_DAY;
   unsigned Hours = RemainingSeconds / SECONDS_IN_HOUR;
   RemainingSeconds %= SECONDS_IN_HOUR;
   unsigned Minutes = RemainingSeconds / SECONDS_IN_MINUTES;
   unsigned Seconds = RemainingSeconds % SECONDS_IN_MINUTES;
   
   
   //Output results.
   cout<<endl;
   cout<<"\t\t\t"<<TotalSeconds<<" seconds equals:"<<endl;
   cout<<"\t\t\t"<<Days<<" days"<<endl;
   cout<<"\t\t\t"<<Hours<< " hours"<<endl;
   cout<<"\t\t\t"<<Minutes<<" minutes"<<endl;
   cout<<"\t\t\t"<<Seconds<<" seconds"<<endl;
   cout<<endl;

   reset_istream();
   wait_for_enter();
   return 0;
}

//--------------------------------------------------- void reset_istream()
{
   if(cin.eof())
   {
      cin.clear();
   }
   else
   {
      cin.clear();
      cin.ignore(numeric_limits<streamsize>::max(), '\n');
   }
}

//--------------------------------------------------- void wait_for_enter()
{
  cout << "press <enter> to continue...";
  // Reset failstate, just in case.
  cin.clear();
  string line;
  getline( cin, line);
}