I got one for OP, too: UTC is not a timezone in the first place [1].
> UTC is not a time zone, but a time standard that is the basis for civil time and time zones worldwide. This means that no country or territory officially uses UTC as a local time.
The difference is subtle, but a standard is not subject to government whims while a timezone is.
1. https://www.timeanddate.com/time/gmt-utc-time.html#:~:text=U....