I see that the hours for the park were updated. Unfortunately, the format of the provided open hours was invalid. The format was just fixed for the park with https://www.openstreetmap.org/changeset/139775577. If you're using the web browser editor, you can click the "i" next to a field to see more information about that field. In this case, more information can be found here: https://wiki.openstreetmap.org/wiki/Key:opening_hours

Thanks for your contribution.