Edit in JSFiddle

var html = '';
for (var i = 0; i < 60; i++) {
  html += "<option value = '" + i + "' >" + i + "</option>";
}
$('.minute').append(html);
var d = new Date();
var n = d.getMinutes();
$(".minute").val(n);

var htm = '';
for (var j = 0; j < 24; j++) {
  htm += "<option value = '" + j + "' >" + j + "</option>";
}
$('.hour').append(htm);
var dt = new Date();
var h = dt.getHours();
$(".hour").val(h);


$(".hour option").filter(function() {
    //may want to use $.trim in here
    return $(this).text() == h;
}).attr('selected', true);

$(".minute option").filter(function() {
    //may want to use $.trim in here
    return $(this).text() == n;
}).attr('selected', true);

<select class="hour"></select>시
<select class="minute"></select>분