Highcharts load date values in X axis - json

Question

I have a Highcharts chart which gets it's data from a JSON request.
function slowips(target){
var options = {
chart: {
renderTo: target,
type: 'spline',
borderColor: '#0072C6',
borderWidth: 3
},
title: {
text: 'Responsetime'
},
subtitle: {
text: 'Nr.1 is slowest'
},
legend: {
enabled: true,
layout: 'vertical',
align: 'right',
verticalAlign: 'middle'
},
yAxis: {
title: {
text: 'Milliseconds'
},
min: 0
},
exporting: {
enabled: false
},
credits: {
enabled: false
},
xAxis: {
type: 'datetime',
dateTimeLabelFormats: {
month: '%e. %b',
year: '%Y'
},
labels: {
enabled: true,
},
minorTickLength: 0,
tickLength: 0,
},
plotOptions: {
spline: {
animation: false,
enableMouseTracking: false,
marker: {
enabled: false
}
}
},
series: [{}]
};
$.getJSON('graphs/test.php', function(data) {
options.series = data;
var chart = new Highcharts.Chart(options);
});
}
slowips();
This is an example JSON input:
[ { "name":"sddf", "data": [ ["2013-02-01 00:01:00", 2 ], ["2013-02-02 00:02:00", 2.55 ] ] } ]
Also tried:
[ { "name":"sddf", "data": [ [Date.UTC(12, 3, 09), 2 ], [Date.UTC(12, 3, 10), 2.55 ] ] } ]
The first JSON example renders a chart, but with incorrect X axis data. The second JSON does not render the chart.
Please help out!

Answer 1

You need to use timestamps, so when you load first JSON, then you need to parse it by Date.UTC() / Data.parse(), but functions cannot be places in json inside (as you have in second example).