Change Timezone (Time Shift)

Name: Change Timezone (Time Shift)
Rating: 2.9756 (41 reviews)
Author: ilGur

Easily change your timezone to a desired value and protect your privacy.

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Change Timezone (Time Shift) is a powerful Chrome extension that allows users to easily and quickly change their browser's timezone to any desired value, enhancing online privacy and preventing tracking based on local time. The extension features a user-friendly dropdown list to select timezones, with customizable name and value fields for advanced adjustments.

This tool intelligently accounts for daylight saving time changes to ensure accurate time representation. Users can activate or deactivate the extension conveniently via the toolbar icon, with clear visual indicators. Simply reload all opened tabs after changing settings for the new timezone to take effect. Ideal for privacy-conscious users and developers needing to simulate different timezone environments.

Add-on Privacy & Security Productivity Developer Tools

By:

ilGur

Daily users:

1,492 -22

Rating:

2.98

(41)

Version:

0.1.8 Last updated: 2025-05-10

Version code:

5946213

Creation date:

2018-02-14

Risk:

Permissions:

storage
scripting
contextMenus
webNavigation

Host permissions:

*://*/*

Size:

52.87KB

Email:

il*****@yandex.com

URLs:

Website

Full description:

Source:

Firefox Browser Add-ons

Data ingested on:

2025-07-16

Ranking

# 2,434 ▼ 20

Other rankings

#229 in Tabs ▼ 1

#1 in shift keyword 23

#12 in value keyword 17

#14 in changelog keyword 18

#15 in change color keyword 14

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Other platforms

Change Timezone (Time Shift) (v0.1.8)

20,000 3.20

(45)

User reviews

Users appreciate that the add-on effectively changes the system time zone and updates it immediately in the browser. However, many report significant issues such as breaking functionality on popular websites like YouTube and Geekbench, failing to handle DST, and causing Firefox instability including crashes and slowdowns. The lack of exception management leads to broken sites, forcing some users to uninstall. Privacy concerns arise due to ad and tracking pages opening during installation. Overall, the add-on works for some use cases but has major compatibility and reliability drawbacks.

Pros

Effectively changes the system time zone parameter in the browser.
Easy to use once options are understood, with immediate time zone updates.
Works well for targeting specific uses like changing displayed time on AWS or other websites.
Supports multiple languages, indicating international user base.
Generally reliable on some websites without additional configuration.

Cons

Breaks functionality on various websites such as YouTube, date pickers, Geekbench, and some browser versions of Skype.
Does not handle Daylight Saving Time (DST) correctly.
Causes Firefox performance issues including crashes and significant slowdown for some users.
Lacks fine-tuned controls like exception lists or domain-specific settings, causing widespread site breakage.
On install and uninstall, opens ad/tracking web pages, raising privacy concerns.

Recent reviews

Overall good, it changes the System Time Zone parameter. The downside is that YouTube doesn't work when it is enabled.

by Mo*****, 2025-06-21

by 全民*****, 2025-03-23

by 天灭*****, 2025-02-10

View all user reviews ›

Extension safety

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Change Timezone (Time Shift) requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Browser Add-ons, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Change Timezone (Time Shift) may not be trust-worthy. Avoid installing if possible unless you really trust this publisher.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Medium **** ********* *** ******* ** *** **** * ******* *** ******* *** *** ** ****** ** *****
Medium **** ********* *** *** **** *******
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****

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