How to do automatic refresh every time from a specific time？

I want to combine the functions of the following 2 scripts, for example, the first refresh time is 23:00:00 (need to be accurate to milliseconds), and then refresh every 200 milliseconds, how to do it?

function refreshAt(hours, minutes, seconds) {
    var now = new Date();
    var then = new Date();
 
    if(now.getHours() > hours ||
      (now.getHours() == hours && now.getMinutes() > minutes) ||
        now.getHours() == hours && now.getMinutes() == minutes && now.getSeconds() >= seconds) {
        then.setDate(now.getDate() + 1);
    }
    then.setHours(hours);
    then.setMinutes(minutes);
    then.setSeconds(seconds);
 
    var timeout = (then.getTime() - now.getTime());
    setTimeout(function() { window.location.reload(true); }, timeout);
}
refreshAt(23,00,00); 

timeout=prompt("Set timeout (Second):");
count=0
current=location.href;
if(timeout>0)
setTimeout('reload()',1000*timeout);
else
location.replace(current);
function reload(){
setTimeout('reload()',1000*timeout);
count++;
console.log('every（'+timeout+'）secondrefresh automatically,refresh times：'+count);
fr4me='<frameset cols='*'>n<frame src=''+current+''/>';
fr4me+='</frameset>';
with(document){write(fr4me);void(close())};
}