Comments on Updates to the MATLAB Analysis App with Lots of Example Code

By: Hans Scharler

2019-04-09T17:34:43Z

You are correct. ThingSpeak does adjust its embedded plots to the viewer’s timezone. The MATLAB Plots do not. They use UTC as the default, but as you pointed out, the timezone can be adjusted. Thanks.

By: Claude Andrew

2019-04-09T17:29:15Z

I am using a MATLAB Visualization and what I’ve found is the exact opposite of what you say in this post for thingSpeakRead. The data is returned in UTC time but with no TimeZone in the datetime. If I make no adjustment to the TimeZone then the MATLAB Visualization plots the data with UTC time while the ThingSpeak charts of the same data on the same page *are* adjusted to my account’s timezone. To adjust to my local time I have to first set the TimeZone to ‘Etc/UTC’ and then set to my local timezone thus:
times.TimeZone=’Etc/UTC’;
times.TimeZone=’America/Los_Angeles’;

Perhaps things have moved on since you wrote this article but, if I haven’t made some mistake in my understanding, it might be worth updating.

By: paul reisinger

2018-01-13T18:23:24Z

Hello I just started using Thingspeak a few days ago. In My Profile, time zone is set to : Eastern Time/Us & Canada. This works fine in the Charts view which show the correct local time on the x axis, But when I use the Export function the resulting csv file has UTC timeStamps. So what do I need to do to get the csv file with my local time timestamps?

Thanks,
Paul