Estimation to fix issues on Browser-Safari

Sir,

Having used Safari browser with selenium for first time.

i have 165 tests which are running fine on IE,FF,Chrome
[b:23bahz2g]Now, i need to ensure 165 tests work on safari.[/b:23bahz2g]

[b:23bahz2g]Not knowing the kinds of issues posed by Safari, what should be approximate time needed to fix the probable issues(no. of issues on Safari=UNKNOWN)?[/b:23bahz2g]