This should be easy but for the life of me I can't work it out.

I want to try testing some javascript timezone stuff and I need to put my browser into a different timezone, I'm in the UK so it's set to GMT which in the winter just happens to be the same as UTC so working out whether the difference has been accounted for is impossible.

I'd like to put my PC into EST for example but I can't find anything in Chrome options and I've tried changing my timezone in Win10 options but the browser ignores it. Restarting Chrome doesn't help, even though my PC is sure it's in EST and the clock in my Windows toolbar has changed.

I'm sure I'm just being an idiot here but can anybody help?


The webrowser's local comes from the OS settings.

On windows 10 it's:

  1. Right click on the time/date widget at the windows start bar. (Or go to the Settings app and look for "Date & time")
  2. Uncheck boxes for automatic time and time-zone setting
  3. Manually set the new time-zone

web browser time, date and timezone settings are based on windows 10 "Date &Time" settings