Question

I’m using highcharts for graphical showcase of statistics.
As I understand it,highcharts uses UTC time to parse datetime.In my case,datetime and value both coming from jagged array.When I use only value its fine,when the datetime value enters the case,highcharts does not parse datetime.

I prepared an example here

Datetime in here coming from a string so i must format (dd.MM.yyyy hh:mm:ss)
For this I use moment.js to parse my datetime value.But still no results.

Why highcharts does not render dates properly ?
What is the problem here ?

Thanks

Answer 1

Original code excerpt

var date = moment(graphData.items[i].Date, "dd.MM.yyyy hh:mm:ss");
xdata.push([date._d, graphData.items[i].Value]);

There’s a format issue. Instead of "dd.MM.yyyy hh:mm:ss" you should rather use "DD.MM.YYYY hh:mm:ss", as stated in the documentation.

I would also replace the call to the private member _d with a .native() invokation.

Last, but not least, HighCharts excepts to be fed with the number of milliseconds since Epoch. This can be achieved with a call to getTime().

Fixed code

var date = moment(graphData.items[i].Date, "DD.MM.YYYY hh:mm:ss").native();
xdata.push([date.getTime(), graphData.items[i].Value]);

A working patched version of your code is available here.