Contains BSD time zone information
#include <sys/time.h>
struct timezone
{
time_t tz_secondswest;
int tz_minuteswest;
int tz_dsttime;
};
Specifies the number of seconds west of Greenwich mean time.
Specifies the number of minutes west of Greenwich mean time.
Specifies a nonzero value if daylight savings time is applied during the appropriate part of the year.