UT_timediff

    UT_timediff     1175 modules/ac/access_control.c     exactinterval =  UT_timediff( &endtime, &begintime ); /* old endtime */
    UT_timediff     1233 modules/ac/access_control.c     elapsed = UT_timediff( &begintime, &endtime);
    UT_timediff      143 modules/pw/protocol_whois.c   elapsed = UT_timediff( &begintime, &endtime);
    UT_timediff      232 modules/sq/mysql_driver.c       seconds = UT_timediff( &start_time, &stop_time );
    UT_timediff      200 modules/ta/ta.c   session = UT_timediff( &tas->sessionstart, reftime );
    UT_timediff      201 modules/ta/ta.c   task    = UT_timediff( &tas->taskstart, reftime );
    UT_timediff      473 modules/ud/ud_process_stream.c   timediff = UT_timediff(psotime, &fotime);
    UT_timediff     1153 modules/ud/ud_process_stream.c   timediff = UT_timediff(&stime, &ftime);