Converts a tm structure that expresses GMT or UTC to a binary
timestamp.
Format
#include <utc.h>
int utc_mkgmtime(*utc, *timetm, tns, *inacctm, ins)
utc_t *utc;
const struct tm *timetm;
long tns;
const struct tm *inacctm;
long ins;
Additional Information:
explode
extract