You have a smart button to start & stop your task. When you start your task it will automatically makes
a time sheet entry for that task with starting time. When you toggle it to pause it's end date will be update
and duration will calculate automatically.
No additional configuration required
Timer in Task.
Automatic Time sheet Calculation.
Project -> Search -> Task
Here you can a toggle button to start and stop your task.
Here we can view the start and end date
Automatic Time sheet Calculation
Here you can see the Automatic time sheet entries.