#pragma once #include #include struct tm { int tm_sec; /* Seconds (0-60) */ int tm_min; /* Minutes (0-59) */ int tm_hour; /* Hours (0-23) */ int tm_mday; /* Day of the month (1-31) */ int tm_mon; /* Month (0-11) */ int tm_year; /* Year - 1900 */ int tm_wday; /* Day of the week (0-6, Sunday = 0) */ int tm_yday; /* Day in the year (0-365, 1 Jan = 0) */ int tm_isdst; /* Daylight saving time */ }; extern struct tm *localtime(const time_t *timep); extern size_t strftime(char *s, size_t max, const char *format, const struct tm *tm); extern time_t time(time_t * out); extern double difftime(time_t a, time_t b);