CODEWITHSUNDEEP
javascripthighcharts
David542
David542

Reputation: 110163

Highcharts convert x-axis time to localtime

I have a graph that needs to show server up-time against the user's local time. UTC is not acceptable, as it needs to show the user's computer time.

Is there a way to convert the x-axis time to localtime? My current input looks something like this:

[UNIX_TIMESTAMP,1], [UNIX_TIMESTAMP, 2], ...

If not possible in highcharts, how would I convert the above in UTC to in the user's localtime (i.e., offset the UNIX_TIMESTAMP)?

Upvotes: 12

Views: 20848

Answers (2)

jlbriggs
jlbriggs

Reputation: 17791

You can set useUTC to false in your global options:

http://api.highcharts.com/highcharts#global.useUTC

Upvotes: 22

Reality Extractor
Reality Extractor

Reputation: 1277

Here's how to get the local timezone offset from UTC in minutes in Javascript

var d = new Date();
var tzOffset = d.getTimezoneOffset();

Once you have that you simply subtract that from your UNIX_TIMESTAMP and that's that.

Also, you may want to consider to not pass time values for every data point to Highcharts but instead use the pointStart and pointInterval series properties and then just pass the data.

Upvotes: 2

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