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We strongly recommend to use GMT Offset and set time as GMT+N in user’s profile.
Custom JQL
Returns more results
Symptoms
If you search for issues, where worklogs were added to a specific date (chosen data range contains one day only), you may get extra results.
sWorklogDate >= 2023-07-11 and sWorklogDate <= 2023-07-11
sWorklogDate = 2023-07-11
Cause
First and second expressions return sometime the same set of issue and Jira considers it as a correct result.
Resolution
Unfortunately, as it correlate with current Jira logic, there is no workaround or resolution at the moment.