Is there a way to change your timezone in Chrome devtools?
To do this in Chrome Dev tools you can use the Geolocation sensor emulation.Go to the 3 dotted menu, More Tools and Sensors.
There's a Geolocation dropdown with some common locations but you can change your preferred one as well. To do that you can choose Other... in that dropdown and enter a custom Timezone ID
Here's a demo page to test it: https://mathiasbynens.be/demo/timezoneand a video that shows the procedure: https://www.youtube.com/watch?v=pIpN_AuV4AI
There's no way yet to do this from the DevTools, but I've filed a feature request to implement a way to override the timezone.
In the meantime, you can launch the browser with the TZ environment variable set to the desired timezone name on Linux/MacOS.
Very Simply
Chrome uses the timezone that comes from the operating system.
So, just go into your system preferences and change your timezone.
From the comments, credit to @Barmar