Spoof Timezone icon

Spoof Timezone

by joue.quroi

v0.4.9 Updated Dec 19, 2025 176KiB
CWS
40K
Users
★ 3.69
45 reviews
#2792
of 193.5K
workflow
#874 of 29.7K

Description

The extension alters the timezone information that the browser reveals to web pages to protect your actual timezone from being identified. You can ensure the extension spoofs the correct timezone by setting your preferred one on the options page. Additionally, there is an option to generate random timezones, which can be useful in preventing fingerprinting scripts from identifying your browser based on your actual time zone. To test the current timezone use the right-click context menu item. The extension can also automatically detect your timezone based on your IP address starting from version 0.1.4. Use the right-click action button's menu to access this option. Moreover, there is an option to check and update the timezone on start-up, which can be enabled from the options page. The latest version of the extension includes improvements such as faster injection into iframes and automatic timezone detection that now respects daylight shifting. This extension now works on manifest v3.
Spoof Timezone screenshot 1

Reviews (15 cached)

★☆☆☆☆2025-09-19
Brooke Maxwell

Was playing a game and suddenly the browser window comes up with a giant "REVIEW" button in the middle of my screen. So here you go, a review. Maybe consider not interrupting people to review your add-on when there's plenty of others that do the same thing.

★☆☆☆☆2022-10-27
Delvin Alva

Doesn't worked at all. .. please back to old version. thank's

★☆☆☆☆2018-06-15
Brendan Heywood

Doesn't seem to work

★☆☆☆☆2018-06-13
Arya Putra

Doesn't worked at all. Don't know what this extension does all these time.

★☆☆☆☆2018-05-12
waterfall

This addon don't take into account Daylight saving time.

★☆☆☆☆2018-04-25
Bahadır Dalgıç

Not working on chrome 66

★★☆☆☆2023-09-13
Sam Vloeberghs

The offset is wrong / inversed. America/New_York returns -240 while it should be 240

★★☆☆☆2018-10-18

Sometimes can not update time zone. An error has been occurred. Error : Unexpected token < in JSON at position 0

★★★☆☆2026-03-11
高源

It might be working, but you really need to focus more on how to make the whole user interface more user friendly. Most users can't even figure out how to set a different time zone when they first install the extension.

★★★☆☆2025-08-21
Lothar Wong

The extension is affecting Clouflare Turnstile even when whitelisted. It causes me to fail CAPTCHA.

★★★☆☆2025-01-09
Pooya Esi

Can't use colab when this add-on is active

★★★☆☆2023-12-20
Fawaz Akhtar

Doesn't work on reddit.

★★★☆☆2020-04-14
Brian Davies

It works for me but I noticed that on some airline websites and my cycling records website it messes with the calendar date popups used to choose input date date required. That could be very awkward. It would be nice to to able to activate/deactivate on the toolbar icon. It also needs to be able to be switched on/off at the toolbar.

★★★☆☆2019-08-26
Jose Jeffrey Mazaredo (Jmaz)

There is a bug. When you have enabled this and checkj on an application that uses calendar, the calendar gets bugged on a different date, Example set to california all is good then when you open a calendar app somewhat it moved a date before the real date. Calenda dates should be checked. Using ubuntu and calendar app is inhouse (might be built with vb/dotnet)

★★★☆☆2018-10-24
Andrew Gremlich

It works, but most likely not in the way that most people want it to work. I went here to see if I could actually mimic my computer location to be in another timezone. However, when I dug into the code, all that I believe that it is doing is showing the offset time. So whatever time that is inputted could error to the developers dismay due to the international date line. The time shown is just the offset time! The alternative method that does work, is just forcing your computer's timezone setting to be a different timezone.

Permissions (5)

Permissions

contextMenus Can add items to the right-click menu notifications Can show desktop notifications scripting Can inject scripts into web pages storage Can store data locally in your browser webNavigation Can monitor navigation events

Details

Version 0.4.9
Updated Dec 19, 2025
Size 176KiB
First Seen Mar 27, 2026

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