My site links have harm message , I cleaned my site and report Google for it What's the time take to delete this harm message ?
first you need to knOw why your site would get the harm message from search engine, Double check your site content please.
My site for " Sree Software Review " And my site get harm because some one put code for Trojan site ....
There is no time limit. You just have to inform Google to re-check your site once the issue is resolved. When this issue exists, there is a special contact link in your Google Webmaster Tools account. They are very quick at reinstating sites that were hacked but are now fixed.
My site was reinstated when I got hacked 8 months ago within a couple days, but my Google traffic has been at about 40% of the levels prior to that ever since.