#include <time.h>
struct tm time = { 0 };
time.tm_year = Year - 1900;
time.tm_mon = Month - 1;
time.tm_mday = Day;
time.tm_hour = Hour;
time.tm_min = Minute;
time.tm_sec = Second;
if (time.tm_year < 0)
{
time.tm_year = 0;
}
time_t t = mktime(&time);
if (t != (time_t) -1)
{
stime(&t);
}