I have two of the default calendar modules, one above the other both visually and in config.js.
module_1_calendarand module_2_calendar. I have both modules with dateFormat set to MM/DD/YY.
I also have getRelative: 0, which in the configure options description says will force the calendar event to stay absolute vs at a configured time (0 - 48) with default being 6. My understanding could be way off the mark but I translate that as saying right up to and including the day of the event it will stay in 'MM/DD/YY' rather than what is shown in attached picture of my config.js file. The default 6 hours isn’t really the issue either as the circled Wednesday at 12:AM is way out beyond 6 hours.
In the end I do not want either calendar to show anything but 'MM/DD/YY' and I thought the combination of the date format and forcing the getRelative would accomplish that.