At code inspection I have strong believe this commit is the one changing the behaviour between comment #2 (America/Sao_Paulo) and comment#6 (UTC)
* 8e3260376c Update timezonemap.h, which needs to match commit 8e3260376c65b762a51eee7c30ab560dadefa1f6 Author: Derick Rethans <git...@derickrethans.nl> Date: Tue Oct 24 14:55:13 2017 +0100 Update timezonemap.h, which needs to match the bundled TZ db ... - { "wgst", 1, -7200, "America/Godthab" }, - { "wgt", 0, -10800, "America/Godthab" }, ... $ git tag --contains 8e3260376c php-7.0.26 php-7.0.26RC1 php-7.1.12 php-7.1.12RC1 php-7.2.0 php-7.2.0RC5 php-7.2.0RC6 It seems like this update has been backported in upstream 7.0, 7.1, ... ~1month ago. This would possibly need an SRU to adapt our different PHP package version where it applies to stay align with new tzdata package. - Eric -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to tzdata in Ubuntu. https://bugs.launchpad.net/bugs/1734967 Title: tzdata info for WGT/WGST broken Status in php5 package in Ubuntu: New Status in php7.0 package in Ubuntu: New Status in tzdata package in Ubuntu: Invalid Bug description: Using "America/Godthab" timezone, "WGT/WGST" is no longer displayed from date command but instead just "-03". Problem is evident in PHP applications too, which now think we're in Sao Paolo. This appears to have changed with latest tzdata update or perhaps in combination with change from DST. Same problem on 16.04, 17.10 and Debian 9. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/php5/+bug/1734967/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp