Summary

The "Log Work" functionality when transitioning an issue is using the JIRA System "Default user time zone" to set the "Date Started".
It should be using the "User Time zone" set in the Profile section

Steps to Reproduce

1. Go to an issue, find a workflow transition that has log work added to the transition screen
2. Click on "Log Work" and check the Time in "Date Started"
3. Change your user timezone by going to your Profile
4. Refresh the issue
5. Click on "Log Work" and check the "Date Started" field again

Expected Results

The Time defaults to the timezone recently set in the profile

Actual Results

The Time remains the same as before because it still uses the JIRA "Default user time zone"

Workaround

No available workaround