Timezone problems on -current

[bob prohaska]

It seems that the timezone gets screwed up each time the OS is
upgraded on a Pi4  via sources on -current. ntpdate is working, but the
machine reports a local time of 
bob at nemesis:~ % date
Mon May  3 15:27:04 PDT 2021
while a Pi2 reports
fbsd at www:~ % date
Mon May  3 08:28:35 PDT 2021

The timezone is PDT in both cases, but the time shown looks like 
UTC for the Pi4 but PDT for the Pi2.

I've noticed this before and cured it for a while by running tzsetup.
The problem seems to return each time the OS is upgraded, though I
have not kept careful track of what's going on. Anybody else noticed
this?

Thanks for reading,

bob prohaska