#!/bin/sh

STARTTIME=$(date +%s)

sleep 67;


ENDTIME=$(date +%s)

DIFFTIME=$(expr $ENDTIME - $STARTTIME)
DIFFMINS=$(expr $DIFFTIME / 60)
DIFFSECS=$(expr $DIFFTIME - $(expr $DIFFMINS "*" 60))

echo -e "Total time to complete: $DIFFMINS minutes, $DIFFSECS seconds."