Do you want to track how long it takes to finish a project exactly?
If yes, Clockitin may be a good tools for you to track time.
There are only 3 steps for you to track your project time:
Firstly, to add a project;
Secondly, to add a task for the project;
And then, to start the session for the task.
Besides tracking the project time, you can also share your project status with your friends via email, or with all over the world with the public url. Your sharing page will look like this:
From the above image, you can see that it took me 35 minutes to write this post.
No bugs have been found up till now. 
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