It seems that AphrontFormDateControl is responsible for the wrong time formatting and not the phrequent code.

Now I have the edit function. Thanks.
There's a slight misbehaviour that the users time format is not respected. I'll try to change that first...

@CodeMouse92 I may have not been clear what I meant. In prequent-edit.tar.gz are some files missing to make editing work. So @witrin may pack his phrequent folder so we can get the missing pieces and make it patch out of it.

Hi @witrin. Thanks for the files!

I just tried to apply https://secure.phabricator.com/D10162 to current stable but it doesn't work really. It seems a little has changed in Phabricator. Edit function throws an exception and PhrequentSearchEngine::renderResultList() returns a PhabricatorApplicationSearchResultView object in current code but nor in the patch. Unfortunately I'm very new to Phabricator so I'm not able to fix that easily.