You can reuse code from Re: Calculate Time Message #866527

sum CTOT(tim) - CTOT("00:00:00") to lnSec
lcTotalTime = PADL(INT(lnSec/3600), 2, "0") + ":" + ;
		PADL(INT((lnSec%3600)/60),2, "0") + ":" + ;
		PADL(lnSec % 60,2, "0") 

> i have at mytable field with time as under
>rec1 field tim&&character type
> 10:30:15
>rec2 12:50:05
>rec3 08:10:00
>
>i need to sum this field as
>sum tim to m.k&&to get result 31:30:20
>