TZ Clock is a free Chrome add-on developed by kamrik. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools. This handy tool adds a clock icon to your toolbar, which, when clicked, displays a popup with a simple calendar and the time in multiple time zones of your choice.

With TZ Clock, you can easily keep track of different time zones without having to manually convert the time. The intuitive interface allows you to select the time zones you want to display, making it convenient for frequent travelers, remote workers, or anyone who needs to coordinate activities across different regions.

The clock icon in the toolbar provides quick access to the calendar and time zones, eliminating the need to open multiple tabs or search for online converters. It's a simple yet effective tool for managing time across various locations.

Overall, TZ Clock is a useful Chrome add-on for those who frequently work with multiple time zones. It offers a straightforward way to stay organized and save time when dealing with international schedules.