>Hi Cetin
>
>>It's a known issue with datetime. It is due to how datetime is stored (a silly way IMHO but not VFP's fault):
>>
>>lnTotalSecs = round(EVALUATE(THIS.cToDateTimeField) - EVALUATE(THIS.cFromDateTimeField),0)
>
>Thanks a million, this was driving me whacky.

See Re: Crazy behavior Thread #883910 Message #883986 I think it was discussed more recently, but I could not find it in a quick search.