Question Why does the Burndown Chart displays a random hour for the time spent? Answer The burndown chart is a JIRA feature and as such it uses the time from the JIRA server. If you're not using the "start and end" time in Tempo Timesheets, the worklogs will appear in the burndown chart according to what that time means in the "Jira server time" (i.e.: 00:00, 2:00 AM, etc). You can read more about the time difference between Jira and Tempo here.