Can no longer create events within Lightning for any time span other than 1 hour or, if an all day event, for a period longer than 1 day. Entering times for an event of start: 16:10 end: 16:30 defaults to a start of 15:30 to give an hour long event. The same happens when logging an event starting at 09:30 and ending at 13:00 - it resets to 1 hour. Has something changed in the default settings, because this used to work!