#include <ctime>
    time_t mktime( struct tm *time );

The mktime function converts the local time in time to calendar time, and returns it.

The elements tm_wday and tm_yday of the struct time are recalculated and reset based on the other elements of the struct.

If there is an error, -1 is returned and tm_yday and tm_wday remain unchanged.

Related Topics: asctime, ctime, gmtime, time