>Firsttime = '18:00:00'
>
>Chk1time = '08:03:45'
>
>? GetTimeDiff(Firsttime,Chk1time)
>
>PROCEDURE GetTimeDiff ( time1,time2 )
>
>RETURN STUFF(STUFF(RIGHT(TTOC({^1900/01/01 00:00} + (CTOT(m.time2)-CTOT(m.time1))%86400,1),6),5,0,':'),3,0,':')
>
>ENDPROC
>

return TTOC(ctot('00:00:00') + (CTOT(m.time2)-CTOT(m.time1))%86400,2)