Subj : tzdata question
To   : All
From : Mike Powell
Date : Tue Apr 01 2025 02:36 pm

I am running debian.  Sometime in the past month, when I received a kernel
upgrade and also a tzdata upgrade, I noticed that the time was wrong on my
system. 

Today, I saw (apt list --upgradable) that another tzdata update was coming.
Before I ran apt upgrade, I checked the following:

/etc/localtime -> pointed as shortcut to correct timezone
/etc/timezone -> contained the correct timezone

I watched the apt upgrade run.  When it came time for tzdata to reconfigure, it
said:

Current default time zone: 'America/Indiana/Indianapolis'

Which is wrong.

/etc/localtime and /etc/timezone were both now pointed to Indianapolis, which
is wrong and not what they said right before the upgrade.

So I ran dpkg-reconfigure and got it fixed again. 

Out of curiousity, I also ran dkpg-reconfigure and then selected "cancel"
without making any choices.  Guess what?  tzdata set me back to "Indianapolis"!

This is happening on every debian/devuan/raspbian system that I have, and it
started happening sometime during the past month or six weeks after I received
a kernel/tzdata update.

I thought the time zone was saved in the two above places in /etc.  Is there
some other place that tzdata is reading from that I need to look at so that, in
future, whenever tzdata gets updated I don't have to remember to go back and
manually fix the time zone each time?

Thanks!
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