well this is what we have now.... lol not really anything to do with what im doing... but

echo %time% > D:\V\NAS\DVDBUILD\D_SPEED1.TXT
FOR /F "tokens=1,2,3 delims=:" %%A IN (D:\V\NAS\DVDBUILD\D_SPEED1.TXT) DO (
SET CHOUR=%%A
SET CMIN=%%B
SET CSEC=%%C
)

COPY S:\NAS\2004_U4\SPEEDTST.TXT,D:\V\NAS\DVDBUILD\SPEEDTST.TXT

echo %time% > D:\V\NAS\DVDBUILD\D_SPEED2.TXT
FOR /F "tokens=1,2,3 delims=:" %%A IN (D:\V\NAS\DVDBUILD\D_SPEED2.TXT) DO (
SET CHOUR2=%%A
SET CMIN2=%%B
SET CSEC2=%%C
)
SET /A CHOUR=CHOUR*60
SET /A CHOUR=CHOUR*60
SET /A CMIN=CMIN*60
SET /A STARTTIME=CHOUR+CMIN+CSEC

SET /A CHOUR2=CHOUR2*60
SET /A CHOUR2=CHOUR2*60
SET /A CMIN2=CMIN2*60
SET /A ENDTIME=CHOUR2+CMIN2+CSEC2

SET /A DLTIME=ENDTIME-STARTTIME