Worklog total sums are displayed in JIRA issue view in the Time Tracking and Collaborators sections. Worklog details owned by you are displayed in the Tempo panel. If you have a permission to view all worklogs on the issue you can do so in the issue report.
Tempo panel in JIRA issue view
The Tempo panel is displayed in the JIRA issue view for all users with Tempo Time Tracking permission. Your worklogs for the selected period are displayed in the panel. You can navigate between periods. You also have quick access to the issue report by clicking the report icons representing the issue report view and issue list view.
JIRA Time Tracking section
The Time Tracking field is provided by JIRA, but by clicking it's plus icon the Tempo Log Work dialog is displayed where you can log work on the issue. The total sum logged on the issue is displayed in this field.
Tempo Collaborators section
The Collaborators panel is displayed if the Planning Options are enabled in global configuration. The plus icon opens the Plan Time Dialog to plan work on the issue.
The panel shows all users that have logged work or planned time on the issue, given the current user is in the Tempo Project Managers Role. If you don´t have a permission to view all worklogs and plans in the project only your data is displayed.