# Timer in Timesheet
Timesheets can be tracked against Project and Tasks along with a Timer.
#### Steps to start a Timer:
- On clicking, **Start Timer**, a dialog pops up and starts the timer for already present activity for which checkbox `completed` is unchecked.
- If no activities are present, fill up the activity details, i.e. activity type, expected hours or project in the dialog itself, on clicking **Start**, a new row is added into the Timesheet Details child table and timer begins.
- On clicking, **Complete**, the `hours` and `to_time` fields are updated for that particular activity.
- At any point of time, if the dialog is closed without completing the activity, on opening the dialog again, the timer resumes by calculating how much time has elapsed since `from_time` of the activity.
- If any activities are already present in the Timesheet with completed unchecked, clicking on **Resume Timer** fetches the activity and starts its timer.
- If the time exceeds the `expected_hours`, an alert box appears.
