Widget time calculation seems to be incorrect

For all my google calendar entries with an end date on the next day, the widget thinks it also starts then.

I have two widgets. The first shows all entries of today with “Events per Page: Number of Days: 1” / “Offset: 0”, and the other shows the next upcoming event with “Events per Page: Number of Events: 1” / “Offset: 1”. Everything is ok, as long as the calendar entry starts and ends on the same day. When it ends on the next day, the first widget shows “no entry” and the second shows the entry of today as an upcoming event.

https://wordpress.org/plugins/google-calendar-events/