Comment 10 for bug 1913482

tzdata verification on groovy:

bdmurray@clean-groovy-amd64:~$ zdump -v Africa/Juba | grep 2021
bdmurray@clean-groovy-amd64:~$ apt-cache policy tzdata
tzdata:
  Installed: 2021a-0ubuntu0.20.10
  Candidate: 2021a-0ubuntu0.20.10
  Version table:
 *** 2021a-0ubuntu0.20.10 500
        500 http://192.168.10.7/ubuntu groovy-proposed/main amd64 Packages
        500 http://192.168.10.7/ubuntu groovy-proposed/main i386 Packages
        100 /var/lib/dpkg/status
     2020f-0ubuntu0.20.10.1 500
        500 http://192.168.10.7/ubuntu groovy-updates/main amd64 Packages
        500 http://192.168.10.7/ubuntu groovy-updates/main i386 Packages
        500 http://192.168.10.7/ubuntu groovy-security/main amd64 Packages
        500 http://192.168.10.7/ubuntu groovy-security/main i386 Packages
     2020b-1ubuntu1 500
        500 http://192.168.10.7/ubuntu groovy/main amd64 Packages
        500 http://192.168.10.7/ubuntu groovy/main i386 Packages
bdmurray@clean-groovy-amd64:~$ zdump -v Africa/Juba | grep 2021
Africa/Juba Sun Jan 31 20:59:59 2021 UT = Sun Jan 31 23:59:59 2021 EAT isdst=0 gmtoff=10800
Africa/Juba Sun Jan 31 21:00:00 2021 UT = Sun Jan 31 23:00:00 2021 CAT isdst=0 gmtoff=7200

ICU data verification:

bdmurray@clean-groovy-amd64:~$ python3 -c "from datetime import datetime; from icu import ICUtzinfo, TimeZone; tz = ICUtzinfo(TimeZone.createTimeZone('Africa/Juba')); print(str(tz.utcoffset(datetime(2021, 2, 1))))"
2:00:00