This bug was fixed in the package gnome-calendar - 3.36.2-0ubuntu1
---
gnome-calendar (3.36.2-0ubuntu1) focal; urgency=medium
* New stable update (lp: #1884803)
-- Sebastien Bacher Mon, 22 Jun 2020 15:20:50
+0200
** Changed in: gnome-calendar (Ubuntu Focal)
Status: Fix
With -proposed enabled I updated gnome-calendar to version
3.36.2-0ubuntu1.
I was able to create and change events in gnome-calendar and watch them
appear or change in both Google Calendar and that of my mail provider. I
also saw this working in the opposite direction.
In all cases event times
Hello Sebastien, or anyone else affected,
Accepted gnome-calendar into focal-proposed. The package will build now
and be available at https://launchpad.net/ubuntu/+source/gnome-
calendar/3.36.2-0ubuntu1 in a few hours, and then in the -proposed
repository.
Please help us by testing this new