x-axis is displayed as local datetime instead of UTC

[tforssander]

(This may or may not be related to #95)

First of all, I assume that I've miss-configured something, but my X-axis appears to always be shown as local time instead of UTC. I tried using both timestamp (1536104489000) and datetime (2018-09-04 23:41:29) as x-axis data.

The first entry in the raw data is 1536104489000 (2018-09-04T23:41:29) but when viewed it shows up as 2018-09-05 01:41:29. I am in a UTC+2 timezone.

Is it possible that Apexcharts or underlying frameworks somehow converts my UTC data into local timezone? If so, is it possible to turn it off?

PS: Thank you so much for Apex :) I love it

[junedchhipa]

Hi @tforssander

Yes, I need to look into the datetime offset issues as many users are reporting it.
It is a possibility that while manipulating datetime, I might have accidentally used local time instead of UTC.

Needs digging further, thanks for reporting the issue. And glad you loved it :)

[tforssander]

@junedchhipa Great, thank you for the quick reply.

[junedchhipa]

Fixed it. You will see the correct "hours" in the next patch release of ApexCharts

[junedchhipa]

By the way, I checked the code - It is not converting UTC dates to local date anywhere.
ApexCharts deals everything in UTC

[bivald]

Hi,

This solves the issue for GMT+1, but not for those of us on GMT+2 (or any other timezone, really). I've made a suggestion for a solution on 661647c

[bivald]

Forgot to ping @junedchhipa :) should I try to do a PR?

[junedchhipa]

@bivald Sorry for the delay, missed the message.
I tried your suggestion you provided in that commit, but for some reason - it didn't work great.

Sure, you can try creating a PR :)

[engHusseinMansour]

Hello
This solves the issue for GMT+1, but not for those of us on GMT+2
There is no solution ?
and please what do you mean by the word PR ?

[mj3f]

Hi @junedchhipa , this is still an issue unfortunately, it's not using UTC date times.

See the following example: https://codepen.io/miketrell/pen/mddeyYK

I've modified the start time to 1570606650000, which corresponds to the date '9 October 2019 07:37:30' UTC time, or '9 October 2019 08:37:30' GMT + 1 (my) local time.

If you change you systems local time, the charts line starts from UTC +/- the offset you've set, rather than 07:37:30 UTC as I would expect. Is there a hidden utc toggle you can set on the xaxis that I'm missing here?

(EDIT: I'm running version 3.8.5)

[alex-lechner]

I'm having the same issue. The chart weirdly displays the data on hour 1 instead of hour 0 and then on hour 17 instead of hour 15. 🤔