Comment 10 for bug 1878108

The tzdata update on Ubuntu 18.04 LTS is good too.

Get:1 http://archive.ubuntu.com/ubuntu bionic-proposed/main amd64 tzdata all 2020a-0ubuntu0.18.04 [190 kB]
Fetched 190 kB in 1s (189 kB/s)
Preconfiguring packages ...
(Reading database ... 202126 files and directories currently installed.)
Preparing to unpack .../tzdata_2020a-0ubuntu0.18.04_all.deb ...
Unpacking tzdata (2020a-0ubuntu0.18.04) over (2019c-0ubuntu0.18.04) ...
Setting up tzdata (2020a-0ubuntu0.18.04) ...

Current default time zone: 'America/Los_Angeles'
Local time is now: Wed May 13 11:15:39 PDT 2020.
Universal Time is now: Wed May 13 18:15:39 UTC 2020.
Run 'dpkg-reconfigure tzdata' if you wish to change it.

bdmurray@clean-bionic-amd64:~$ zdump -v "Africa/Casablanca" > after-update.txt
bdmurray@clean-bionic-amd64:~$ diff -Nurp before-update.txt after-update.txt | head -n 20
--- before-update.txt 2020-05-13 11:13:28.433873105 -0700
+++ after-update.txt 2020-05-13 11:16:49.030851720 -0700
@@ -116,8 +116,8 @@ Africa/Casablanca Sun Jun 9 01:59:59 2
 Africa/Casablanca Sun Jun 9 02:00:00 2019 UT = Sun Jun 9 03:00:00 2019 +01 isdst=0 gmtoff=3600
 Africa/Casablanca Sun Apr 19 01:59:59 2020 UT = Sun Apr 19 02:59:59 2020 +01 isdst=0 gmtoff=3600
 Africa/Casablanca Sun Apr 19 02:00:00 2020 UT = Sun Apr 19 02:00:00 2020 +00 isdst=1 gmtoff=0
-Africa/Casablanca Sun May 24 01:59:59 2020 UT = Sun May 24 01:59:59 2020 +00 isdst=1 gmtoff=0
-Africa/Casablanca Sun May 24 02:00:00 2020 UT = Sun May 24 03:00:00 2020 +01 isdst=0 gmtoff=3600
+Africa/Casablanca Sun May 31 01:59:59 2020 UT = Sun May 31 01:59:59 2020 +00 isdst=1 gmtoff=0
+Africa/Casablanca Sun May 31 02:00:00 2020 UT = Sun May 31 03:00:00 2020 +01 isdst=0 gmtoff=3600
 Africa/Casablanca Sun Apr 11 01:59:59 2021 UT = Sun Apr 11 02:59:59 2021 +01 isdst=0 gmtoff=3600
 Africa/Casablanca Sun Apr 11 02:00:00 2021 UT = Sun Apr 11 02:00:00 2021 +00 isdst=1 gmtoff=0
 Africa/Casablanca Sun May 16 01:59:59 2021 UT = Sun May 16 01:59:59 2021 +00 isdst=1 gmtoff=0