Allow plugins ability to augment the html displays?

[dan]

I puled your SIP updates and installed diurnal_display plugin.
When I try to load the plugin I get:
Ignoring exception while loading the diurnal_display plug-in.
cannot import name 'UTC' from 'datetime' (/usr/lib/python3.9/datetime.py)

Running Python 3.9.2  Pi OS bullseye.

I will try with a newer Python version.

Dan

Same import error on windows with Python 3.10.11.