How to execute function if there is hour 12:00 (noon)?

[toplisek]

How to execute function if there is hour 12:00 (noon)?
As we know time is simple:
$dt = mktime(date("G"), date("i"), date("s"), date("n"), date("j"), date("Y"));

I like to add IF sentence but what is condition?

[Readie]

if(date('H') == 12) {

}

Should do it :)