Time Log
Time logging application
GTimeLog is a small GNOME app for keeping track of your time. Its main goal is to be as unobtrusive as possible.
gtimelog provides a time tracking application to allow the user to track what they work on during the day and how long they spend doing it.
How to install Time Log in Ubuntu
If you are on a supported distro, you can install the application through software center by clicking the below link.
If the above link not working, run the below command in terminal to install gtimelog in Ubuntu
sudo apt install gtimelog