The core function of Tempo Timesheets is to log work on Jira issues. Tempo users can access the Log Work form or window from many locations and fill in the information to create worklogs.
You can Log work access a Log Work form the Calendar view in Timesheets, or from the Tempo panel in the Jira issue view. Drag across the canvas or click on the canvas in the Calendar view to display the Log Work form.
The Issue Log Work window is displayed when click on a cell in the Timesheet view to add a worklog for that date and issue.
In addition to the above methods, you can log work on your cell phone by using the Tempo Mobile App for JIRA, which is available free for iOS and Android.