Summary

When filtering the issue by setting the resolution date to any date in March month, JIRA will throw an error indicate that the date format is incorrect.

Environment

JIRA Cloud version 1000.5.2

Steps to Reproduce

1. Set system language as Deutsch
2. Go to issue navigator and choose basic search
3. click on More and type Resolution Date
4. From the Resolution Date field options, click on Between date and date and insert any date from March month
5. An error message will appear indicates that the date format is invalid even though it is correct

Expected Results

Update the filter and return result successfully

Actual Results

Throw below error in screenshot :-

Translation: Invalid date format. Enter a date of format 'd/MMM/yy'

Workaround

Enable English (United States) for default language.

Another workaround is to use the JQL-view of the query-builder and use following JQL:

resolved >= 2016-03-27 AND resolved <= 2016-05-06

Once you have entered this JQL input, you can switch back to 'Basic' mode and the search form will be correctly populated.