Hola, Eli.
A ver si te sirve esto. He supuesto que el segundo horario va con 8 horas de adelanto sobre el primero:
<form name="clock">
<input type="text" size="8" name="time" value="hh:mm:ss">
<input type="text" size="8" name="time2" value="hh:mm:ss">
<script language="JavaScript">
<!-- Reloj
var timeClock;
updateClock();
function updateClock() {
var time = new Date();
var hours = time.getHours();
var minutes = time.getMinutes();
var seconds = time.getSeconds();
timeClock= (hours < 10) ? hours : hours;
timeClock+= ((minutes < 10) ? ":0" : ":") + minutes;
timeClock+= ((seconds < 10) ? ":0" : ":") + seconds;
document.clock.time.value = timeClock;
time2=time.getTime()+(8*60*60*1000);
time2=new Date(time2);
hours = time2.getHours();
minutes = time2.getMinutes();
seconds = time2.getSeconds();
timeClock= (hours < 10) ? hours : hours;
timeClock+= ((minutes < 10) ? ":0" : ":") + minutes;
timeClock+= ((seconds < 10) ? ":0" : ":") + seconds;
document.clock.time2.value = timeClock;
setTimeout("updateClock()",1000);
}
//-->
</script>
</form>
Saludos,
