#include //http://www.cplusplus.com/reference/ctime/ #include int main() { std::cout << "The header can do alot more than just being a seed for the rand() function!" << std::endl << "Visit the link above for more information." << std::endl; time_t now = time(0); /* The structure type tm holds the date and time in the form of a C structure: struct tm { int tm_sec; // seconds of minutes from 0 to 61 int tm_min; // minutes of hour from 0 to 59 int tm_hour; // hours of day from 0 to 24 int tm_mday; // day of month from 1 to 31 int tm_mon; // month of year from 0 to 11 int tm_year; // year since 1900 int tm_wday; // days since sunday int tm_yday; // days since January 1st int tm_isdst; // hours of daylight savings time } */ tm *ltm = localtime(&now); /*@Kinshuk gave me the hint that Sololearn's server computer, which compiles our codes, uses UTC, as a result your localtime isnt printed here, try in your own IDE instead*/ //Array holding the days off a week const std::string weekday[7] = {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"}; //Array holding the months of a year const std::string month[12] = {"January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"}; //Now we can output all the different things in the structure std::cout << std::endl << "It can give you the year: " << ltm->tm_year + 1900 << std::endl; //Dont forget 1900! std::cout << "It can give you the month: " << month[ltm->tm_mon] << std::endl; std::cout << "Day of the month: " << ltm->tm_mday << std::endl; std::cout << "Day is possible aswell: " << weekday[ltm->tm_wday] << std::endl; std::cout << "And of course the current time: " << ltm->tm_hour << ":" << ltm->tm_min << ":" << ltm->tm_sec << std::endl; std::cout << "Please notice here that Sololearn's compiler uses UTC, so your local time wont be printed!" << std::endl; /* Actually, that is not even necessary, as we can format the structure directly into a string with asctime()! */ char* mt = asctime(ltm); //Lets output this! std::cout << std::endl << "Now via asctime function: \n" << mt << std::endl; //Now we call the UTC time instead via the gmtime() function tm *gmtm = gmtime(&now); mt = asctime(gmtm); std::cout << "We can also access the UTC time, in comparison to the local time: " << std::endl << mt << std::endl; //difftime() returns the difference between two times in seconds, which is 0 here of course std::cout << "Difference between your time zone and UTC is " << difftime(now, mktime(gmtm))/3600 << " hours."; //mktime() is the reverse translation from localtime //structure -> time_t return 0; }

<ctime> is more than a seed