Comment 11 for bug 1734967

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".