Time cannot be set
On every reboot, if cellular or Wi-Fi services are not connected, the device's time is set to sometime in 1970. It is not possible to set the time or timezone via the time and date settings. Instead, the following message is emitted in the serial console whenever setting the time or timezone is attempted:
systemd-timedated: Assertion 'path' failed at ../src/basic/path-util.c:354, function path_startswith(). Aborting.