Example

   The following example converts an ASCII time string to its binary
   equivalent.

   utc_t     utc;
   char      str[UTC_MAX_STR_LEN];

   /*
    *   July 4, 1776, 12:01:37.223 local time
    *   TDF of -5:00 hours
    *   Inaccuracy of 3600.32 seconds
    */

   (void)strcpy((void *)str,
                "1776-07-04-12:01:37.223-5:00 I 3600.32");

   utc_mkasctime(&utc,    /* Out: Binary utc            */
                 str);    /* In:  String                */