Nish, Sorry if I didn't mention it earlier but I am able to reproduce in debian/unstable and ubuntu/bionic with php7.1.
# lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu Bionic Beaver (development branch) Release: 18.04 Codename: bionic # rmadison php7.1 php7.1 | 7.1.11-0ubuntu2 | bionic | source, all # dpkg (php7.1) ii php7.1 7.1.11-0ubuntu2 all server-side, HTML-embedded scripting language (metapackage) ii php7.1-cli 7.1.11-0ubuntu2 amd64 command-line interpreter for the PHP scripting language ii php7.1-common 7.1.11-0ubuntu2 amd64 documentation, examples and common module for PHP ii php7.1-json 7.1.11-0ubuntu2 amd64 JSON module for PHP ii php7.1-opcache 7.1.11-0ubuntu2 amd64 Zend OpCache module for PHP ii php7.1-readline 7.1.11-0ubuntu2 amd64 readline module for PHP ## dpkg (tzdata) ii tzdata 2017c-1 all time zone and daylight-saving time data # php --version PHP 7.1.11-0ubuntu2 (cli) (built: Nov 7 2017 09:01:09) ( NTS ) # php /tmp/tz.php America/Sao_Paulo The tz bundle update [8e32603] has been first introduced in "php-7.1.12". -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1734967 Title: tzdata info for WGT/WGST broken To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/php5/+bug/1734967/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs