I never restarted it after reserve was met, so must be a bug, and must be one I'm not seeing on my side.. but I assure you that the auction is not ending and the time is always held on the server side, the client is just doing the reporting... so maybe if you refresh or login it will update the time properly again.
Yea thats really weird because since you first posted and claimed it happened again I've been watching it and it never ended or got to 0 its always been counting down. If you ever see it go to 0 take a screen shot, there is less than a day left now.
I have too much to do in any day, to waste time making things up, I know what I saw. You said it was set for "end of the month" but how many hours was the timer set for originally?
You may have seen a bug but we can't reproduce (yet). I set it for end of the month 10-12 days ago, so you can calculate how many hours it would have been set to. It's been counting down ever since. The auction only ends once the END DATE is less than the CURRENT DATE... the timer countdown has nothing to do with the functionality other than visually.