Issue Converting Highcharts to 24 hours format - highcharts

Question

I am currently struggling with my Highcharts chart with the hours format. I have a series with 65 points of data but the hour format of each point is 24 hours. I am unable to use the same format in the highchart and it automatically converts for example 13:00:00 to 01:00:00.
Here is my script
<script>
Highcharts.setOptions({ global: { timezoneOffset: 660, useUTC: true } });
var chart1;
$(document).ready(function() {
chart1 = new Highcharts.StockChart({
chart: { renderTo:'chart1_container', type: 'spline' },
plotOptions: { line: { dataLabels: { enabled: true }, enableMouseTracking: true } },
subtitle: { text: 'Y1' },
title: { text: 'Y1' },
tooltip: { enabled: true, formatter: function() {var s = [];$.each(this.points, function(i, point) {s.push('<span style="color:'+point.series.color+';font-weight:bold;">'+ point.series.name +' : '+point.y + '<span>'); });return s.join(' and ');}, shared: true },
xAxis: { dateTimeLabelFormats: { hour: '%H:%M', day: '%H:%M' }, type: 'datetime' },
yAxis: { title: { text: 'Y1' } },
series: [{ data: [[Date.parse('09/01/2016 12:45:34'), 0], [Date.parse('09/01/2016 12:46:11'), 0], [Date.parse('09/01/2016 12:47:24'), 0], [Date.parse('09/01/2016 12:48:59'), 0], [Date.parse('09/01/2016 12:50:41'), 1], [Date.parse('09/01/2016 12:51:43'), 1], [Date.parse('09/01/2016 12:52:01'), 1], [Date.parse('09/01/2016 12:55:14'), 1], [Date.parse('09/01/2016 13:01:12'), 1], [Date.parse('09/01/2016 13:01:30'), 1], [Date.parse('09/01/2016 13:02:37'), 1], [Date.parse('09/01/2016 13:03:31'), 1], [Date.parse('09/01/2016 13:04:19'), 1], [Date.parse('09/01/2016 13:05:14'), 1], [Date.parse('09/01/2016 13:05:32'), 1], [Date.parse('09/01/2016 13:06:52'), 1], [Date.parse('09/01/2016 13:07:47'), 1], [Date.parse('09/01/2016 13:08:06'), 1], [Date.parse('09/01/2016 13:09:01'), 1], [Date.parse('09/01/2016 13:10:14'), 1], [Date.parse('09/01/2016 13:12:27'), 2], [Date.parse('09/01/2016 13:13:15'), 2], [Date.parse('09/01/2016 13:14:03'), 2], [Date.parse('09/01/2016 13:14:40'), 2], [Date.parse('09/01/2016 13:15:35'), 2], [Date.parse('09/01/2016 13:16:30'), 2], [Date.parse('09/01/2016 13:17:55'), 2], [Date.parse('09/01/2016 13:18:21'), 2], [Date.parse('09/01/2016 13:21:30'), 2], [Date.parse('09/01/2016 13:23:58'), 3], [Date.parse('09/01/2016 13:26:39'), 3], [Date.parse('09/01/2016 13:29:18'), 4], [Date.parse('09/01/2016 13:30:14'), 4], [Date.parse('09/01/2016 13:31:29'), 4], [Date.parse('09/01/2016 13:32:36'), 4], [Date.parse('09/01/2016 13:34:10'), 4], [Date.parse('09/01/2016 13:36:39'), 5], [Date.parse('09/01/2016 13:39:01'), 5], [Date.parse('09/01/2016 13:39:38'), 5], [Date.parse('09/01/2016 13:40:46'), 5], [Date.parse('09/01/2016 13:42:01'), 6], [Date.parse('09/01/2016 13:43:09'), 6], [Date.parse('09/01/2016 13:45:32'), 6], [Date.parse('09/01/2016 13:46:59'), 7], [Date.parse('09/01/2016 13:48:26'), 7], [Date.parse('09/01/2016 13:49:04'), 7], [Date.parse('09/01/2016 13:50:11'), 7], [Date.parse('09/01/2016 13:51:46'), 8], [Date.parse('09/01/2016 13:55:18'), 8], [Date.parse('09/01/2016 13:56:04'), 8], [Date.parse('09/01/2016 13:59:37'), 9], [Date.parse('09/01/2016 14:02:25'), 10], [Date.parse('09/01/2016 14:08:38'), 11], [Date.parse('09/01/2016 14:12:13'), 12], [Date.parse('09/01/2016 14:13:12'), 12], [Date.parse('09/01/2016 14:15:58'), 13], [Date.parse('09/01/2016 14:19:44'), 14], [Date.parse('09/01/2016 14:20:35'), 14], [Date.parse('09/01/2016 14:20:55'), 14], [Date.parse('09/01/2016 14:21:53'), 14], [Date.parse('09/01/2016 14:22:52'), 14], [Date.parse('09/01/2016 14:23:51'), 15], [Date.parse('09/01/2016 14:24:30'), 15]], name: 'Y1' }]
});
});
</script>

Answer 1

Highcharts is not converting 13:00:00 to 01:00:00. You are using default 24-hour date time Highcharts/Highstock format. You just do not have a data point with such date that would show with a time after 12 PM, because of your timezoneOffset and other chart's settings.
Example with an extra data point: http://jsfiddle.net/68xay5jb/

Answer 2

for 24 hour formate try to do like below with Date.UTC
var chart = new Highcharts.Chart({
chart: {
renderTo: 'container'
},
xAxis: {
type: 'datetime' //ensures that xAxis is treated as datetime values
},
series: [{
data: [
[Date.UTC(2012, 5, 22, 8, 15), 14.8],
[Date.UTC(2012, 5, 22, 8, 20), 13.9],
[Date.UTC(2012, 5, 22, 8, 25), 12.8]
//and so on...
]
}]
});