Hello again,
i still have the same problem with goggle calendar fullday entries.
For example an entry for 2 fulldays (01/19-01/20) will be:
ics data from the google calendar link:
…
DTSTART;VALUE=DATE:20190119
DTEND;VALUE=DATE:20190121

So the module shows

So i check all timezone / language etc. settings, in MM, modules section and raspi settings with no success.
Calendar views in google calendar webpage, android calendar apps and also outlook 365 are correct (2 days not 3).

my config

		module: 'calendar',
		header: 'Familienkalender',
		position: 'bottom_left',
		config: {
			maximumEntries: 13,
			displaySymbol: false,
			maxTitleLength: 24,
			fade: true,
			fadePoint: 0.7,
			fullDayEventDateFormat: 'Do MM k:mm',
			timeFormat: 'absolute',
			dateFormat: 'Do MMM k:mm',
			urgency: 0,
			colored: false,
			coloredSymbolOnly: true,
			calendars: [
				{
					url: 'https://calendar.google.com/calendar/ical/.../basic.ics'
				},
			],
		}

Thanks for any hint
Joerg