#ifndef _TIME_H #define _TIME_H typedef unsigned long time_t; struct tm { int tm_sec; /* seconds */ int tm_min; /* minutes */ int tm_hour; /* hours */ int tm_mday; /* day of the month */ int tm_mon; /* month */ int tm_year; /* year */ int tm_wday; /* day of the week */ int tm_yday; /* day in the year */ int tm_isdst; /* daylight saving time */ }; extern time_t time ( time_t *t ); extern time_t mktime ( struct tm *tm ); #endif /* _TIME_H */