If you are one of those people who live a busy life and find it hard to manage time there is an app and extension which can help you manage your time better.
Project Hamster is a Gnome application that helps you in tracking your time and managing it efficiently. Along with a Gnome shell extension the app cam do wonders and help you in managing your time in a better way.
The extension is available on this page. You will also need to install the application Project Hamster (popularly known as Gnome Time Tracker) from sources for it to work.
Here is what the app looks like:
Download Project Hamster and get the installation instructions from this page.