Last modified: 2009-03-31 06:00:40 UTC
In message MediaWiki:regexblock-match-stats-record, the Extension:regexBlock is using a has a combined date/time in $4. Internationalization needs date and time separated so as to correctly insert them into sentences of languages having to have grammatical stuff between date, and time, or between time, and date.
Fixed with Revision 49060