1 struct tm {
    2                   int tm_sec;         /* seconds */  3                   int tm_min;         /* minutes */  4                   int tm_hour;        /* hours */  5                   int tm_mday;        /* day of the month */  6                   int tm_mon;         /* month */  7                   int tm_year;        /* year */  8                   int tm_wday;        /* day of the week */  9                   int tm_yday;        /* day in the year */ 10                   int tm_isdst;       /* daylight saving time */ 11 12               }; 13 14        tm_sec The  number of seconds after the minute, normally in the range 0 to 59, but can be up to 60 to allow for leap seconds. 15 16        tm_min The number of minutes after the hour, in the range 0 to 59. 17 18        tm_hour 19               The number of hours past midnight, in the range 0 to 23. 20 21        tm_mday 22               The day of the month, in the range 1 to 31. 23 24        tm_mon The number of months since January, in the range 0 to 11. 25 26        tm_year 27               The number of years since 1900. 28 29        tm_wday 30               The number of days since Sunday, in the range 0 to 6. 31 32        tm_yday 33               The number of days since January 1, in the range 0 to 365. 34 35        tm_isdst 36               A flag that indicates whether daylight saving time is in effect at the  time  described. The value is positive if daylight saving time is in effect, zero if it is not, and negative if the information is not available.