How do I set a timezone in Selenium Chromedriver?

Question

I can't figure out how to set a timezone when using Chromedriver. Is there some ChromeOptions argument or something?

The issue is that when I go to some sites (for example, https://whoer.net), it shows the system time that is equal to the time set on Windows. And I want to be able to change the Chromedriver's timezone somehow to perform timezone dependent testing.

I tried to set some chrome options:

Map<String, Object> chromeOptions = new HashMap<String, Object>();
chromeOptions.put("args", Arrays.asList("--disable-system-timezone-automatic-detection", "--local-timezone"));
DesiredCapabilities capabilities = DesiredCapabilities.chrome();
capabilities.setCapability(ChromeOptions.CAPABILITY, chromeOptions);

It doesn't work.

Tried to do some weird thing using Javascript:

((JavascriptExecutor) driver).executeScript("Date.prototype.getTime = function() { return 1 };");
   

It didn't help either.

EDIT:

Found this https://sqa.stackexchange.com/questions/8838/faking-system-time-date-with-selenium-webdriver

Tried to execute javascript on page with the code copied from TimeShift.js like this:

((JavascriptExecutor) driver).executeScript("/*code from TimeShift.js here*/ TimeShift.setTimezoneOffset(-60);");

System time at https://whoer.net didn't change. What am I doing wrong?

Answer 1

You can do it by using Chrome DevTools Protocol, and here is the python code:

driver = webdriver.Chrome()
tz_params = {'timezoneId': 'America/New_York'}
driver.execute_cdp_cmd('Emulation.setTimezoneOverride', tz_params)