Cdr report module, hours/minutes filter don't work

Cdr report module I set filter to 1.4.2012 - 30.4.2012 and see all calls. But when I set 10:00 - 18:00 in “call date” filter - i see all calls again (include night/morning). Time on server is correct. Is it bug or I do it wrong? :slight_smile:

Sorry for poor english