Hi,
Bug: The Zephyr LwM2M client does not add resources UTC offset and Timezone to the Device object. Everything is prepared but the actual lines to add them is missing! I have fixed the bug and attach a format patch that you can apply in a future release.
nRF Connect SDK tag: v1.1.0
Zephyr tag: v2.0.99-ncs1
BR / Björn
0001-Initiates-resources-UTC-Offset-and-Timezone-in-Devic.patch