Atomic Clock

Atomic Clock is a small gadget that connects to world time servers and shows you the difference between your system local time and the real time.
Thanks to its GADGET extension, the lightweight app does not require any installation. This way, you can store Atomic Clock on an external device (like a USB flash drive) and always have it with you when you're on the go.
The interface of the tool is based on a small window where you can check out the local and service time and date, along with the difference between them. Atomic Clock can also guide you if you want to synchronize the local time with the server time.
From the 'Settings' area you can change the layout size and make the app get the time from the server at a custom interval, as well as change the time and date format.
In addition, you can disable sounds, enable update notifications, hide the title and copyright text, as well as customize colors for the interface (e.g. background, local time, synchronize, error messages). Options provided by the operating system let you move Atomic Clock anywhere on the screen, make it stay on top of other applications and adjust its opacity level between 20% and 100%.
The simplistic app puts little strain on the computer's CPU and system memory and has a good response time. We have not come across any issues during our tests; Atomic Clock did not cause Windows to freeze, crash or pop up error dialogs.