On Tue, 2022-12-13 at 23:23 -0600, Dave Rolsky via tz wrote:
Actually, I think the issue was with the version of zdump I was using. Apparently it didn't work properly with the latest tz data. This is a bit weird since Ubuntu released an update with the 2022g changes, but apparently the zdump binary is part of a different package, and it hasn't been updated since April, AFAICT.
What Ubuntu version are you on?
On Mon, Dec 12, 2022 at 2:42 PM Paul Eggert <eggert@cs.ucla.edu> wrote:
On 12/12/22 09:47, Dave Rolsky via tz wrote:
I'm a bit confused regarding the output from zdump for the new America/Ojinaga zone. Here's the output for 2022:
I see different output with TZDB 2022g:
$ zdump -V -c 2022,2023 America/Ojinaga America/Ojinaga Sun Mar 13 08:59:59 2022 UT = Sun Mar 13 01:59:59 2022 MST isdst=0 gmtoff=-25200 America/Ojinaga Sun Mar 13 09:00:00 2022 UT = Sun Mar 13 03:00:00 2022 MDT isdst=1 gmtoff=-21600 America/Ojinaga Sun Oct 30 07:59:59 2022 UT = Sun Oct 30 01:59:59 2022 MDT isdst=1 gmtoff=-21600 America/Ojinaga Sun Oct 30 08:00:00 2022 UT = Sun Oct 30 02:00:00 2022 CST isdst=0 gmtoff=-21600
based on the zone's definition I'd expect to see these events:
Oct 30 - change to _CST_ Nov 30 - No change, I guess, since the change to the US rules on Nov 30 doesn't actually change the offset or isdst flag.
Yes, that's what I'd expect too, and it's what I observed above.
Maybe you have an old Ojinaga somehow?