i am figured out, this is code for 24 hour time.
find:
<li>', $context['current_time'], '</li>
replace:
<li>',timeformat(time(),'%B, %d, %Y'), '
<li id="sat">Učitavanje...</li>
<script language="JavaScript">
function init(){
timeDisplay = document.createTextNode ("");
document.getElementById("sat").appendChild (timeDisplay);
}
function prikaziSat(){
var trenutnoVreme = new Date();
var sati = trenutnoVreme.getHours();
var minuti = trenutnoVreme.getMinutes();
var sekunde = trenutnoVreme.getSeconds();
minuti = (minuti < 10 ? "0" : "") + minuti;
sekunde = (sekunde < 10 ? "0" : "") + sekunde;
sati = (sati < 10 ? "0" : "") + sati;
document.getElementById("sat").innerHTML= sati + ":" + minuti + ":" + sekunde;
setTimeout("prikaziSat()",1000);
}
prikaziSat();
</script>
</li>
Edit: added instructions for curve theme.