I left a terminal session tailing `/var/log/syslog` to track what's happening at the time when the notification shows up, and indeed managed to observe it happen again, with a fragment of system logs found below. Looks like NetworkManager fires off a `CONNECTED_SITE` state change, and the location is updated -> notification fires, even if timezone has not changed.

I think the condition that triggers the unnecessary notification is the _location_ changing even if the timezone has not changed, and for whatever reason the location keeps flickering between either Denmark or Germany (both in CET).
 
Here goes the log example:

```
May  2 15:19:41 iris NetworkManager[4609]: <info>  [1651493981.4907] manager: NetworkManager state is now CONNECTED_SITE
May  2 15:19:41 iris dbus-daemon[4607]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service' requested by ':1.10' (uid=0 pid=4609 comm="/usr/sbin/NetworkManager --no-daemon " label="unconfined")
May  2 15:19:41 iris systemd[1]: Starting Network Manager Script Dispatcher Service...
May  2 15:19:41 iris dbus-daemon[4607]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
May  2 15:19:41 iris systemd[1]: Started Network Manager Script Dispatcher Service.
May  2 15:19:41 iris NetworkManager[4609]: <info>  [1651493981.7719] manager: NetworkManager state is now CONNECTED_GLOBAL
May  2 15:19:46 iris wpa_supplicant[4694]: TDLS: Invalid frame - payloadtype=1 category=240 action=26
May  2 15:19:51 iris systemd[1]: NetworkManager-dispatcher.service: Deactivated successfully.
May  2 15:19:52 iris gsd-datetime[7371]: g_object_ref: assertion 'G_IS_OBJECT (object)' failed
May  2 15:19:52 iris gsd-datetime[7371]: message repeated 71 times: [ g_object_ref: assertion 'G_IS_OBJECT (object)' failed]
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris dbus-daemon[4607]: [system] Activating via systemd: service name='org.freedesktop.timedate1' unit='dbus-org.freedesktop.timedate1.service' requested by ':1.161' (uid=1000 pid=7371 comm="/usr/libexec/gsd-datetime " label="unconfined")
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_has_coords: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_city_name: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_get_country: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: gweather_location_unref: assertion 'loc != NULL' failed
May  2 15:19:52 iris gsd-datetime[7371]: message repeated 71 times: [ gweather_location_unref: assertion 'loc != NULL' failed]
May  2 15:19:52 iris systemd[1]: Starting Time & Date Service...
May  2 15:19:52 iris dbus-daemon[4607]: [system] Successfully activated service 'org.freedesktop.timedate1'
May  2 15:19:52 iris systemd[1]: Started Time & Date Service.
May  2 15:19:52 iris systemd-timedated[569438]: Changed time zone to 'Europe/Busingen' (CEST).
May  2 15:19:53 iris wpa_supplicant[4694]: TDLS: Invalid frame - payloadtype=1 category=240 action=26
May  2 15:19:58 iris wpa_supplicant[4694]: message repeated 7 times: [ TDLS: Invalid frame - payloadtype=1 category=240 action=26]
May  2 15:20:00 iris gnome-shell[6671]: setup_framebuffers: assertion 'width > 0' failed
May  2 15:20:03 iris wpa_supplicant[4694]: TDLS: Invalid frame - payloadtype=1 category=240 action=26
May  2 15:20:21 iris wpa_supplicant[4694]: message repeated 9 times: [ TDLS: Invalid frame - payloadtype=1 category=240 action=26]
May  2 15:20:22 iris systemd[1]: systemd-timedated.service: Deactivated successfully.
May  2 15:20:22 iris wpa_supplicant[4694]: TDLS: Invalid frame - payloadtype=1 category=240 action=26
```

Then the next time the notification showed up, I saw the following value being given as the location:

```
May  2 15:25:00 iris systemd-timedated[579251]: Changed time zone to 'Europe/Copenhagen' (CEST).
```