Evil witch curse the kingdom with huge magical clock and when the arrows on the clock tick 12:00 then all the people will die. I think they were getting old very fast because of the clock.
Therefore a knight shows up and he tries to stop the clock and his stone of his ring falls into the clock and somehow stops it.
Also there was flying ships around (I think so).
Sorry for my poor English.

To the Ends of Time (http://www.imdb.com/title/tt0117929/reference)

Thank you very much.

You're very welcome.