timezone.php

<?php
ini_set('intl.default_locale', 'pt_BR');
I18n::setLocale('pt_BR');
date_default_timezone_set('America/Sao_Paulo');
Time::setToStringFormat([\IntlDateFormatter::SHORT, \IntlDateFormatter::SHORT]);

$time = Time::now();
debug($time);
debug((string)$time);
debug($time->i18nFormat());
debug($time->i18nFormat('yyyy-MM-dd HH:mm:ss'));
debug($time->format('Y-m-d H:i:s'));
debug($time->getTimezone()->getTransitions(strtotime('2019-01-01'), strtotime('2020-01-01')));
phpinfo(INFO_MODULES);

/*
########## DEBUG ##########
object(Cake\I18n\Time) {

	'time' => '2019-10-24T16:51:40-03:00',
	'timezone' => 'America/Sao_Paulo',
	'fixedNowTime' => '2019-10-24T19:51:40+00:00'

}
###########################
\tests\TestCase\I18n\TimeTest.php (line 81)
########## DEBUG ##########
'10/24/19, 4:51 PM'
###########################
\tests\TestCase\I18n\TimeTest.php (line 82)
########## DEBUG ##########
'10/24/19, 4:51 PM'
###########################
\tests\TestCase\I18n\TimeTest.php (line 83)
########## DEBUG ##########
'2019-10-24 16:51:40'
###########################
\tests\TestCase\I18n\TimeTest.php (line 84)
########## DEBUG ##########
'2019-10-24 16:51:40'
###########################
\tests\TestCase\I18n\TimeTest.php (line 85)
########## DEBUG ##########
[
	(int) 0 => [
		'ts' => (int) 1546308000,
		'time' => '2019-01-01T02:00:00+0000',
		'offset' => (int) -7200,
		'isdst' => true,
		'abbr' => '-02'
	],
	(int) 1 => [
		'ts' => (int) 1550368800,
		'time' => '2019-02-17T02:00:00+0000',
		'offset' => (int) -10800,
		'isdst' => false,
		'abbr' => '-03'
	],
	(int) 2 => [
		'ts' => (int) 1572750000,
		'time' => '2019-11-03T03:00:00+0000',
		'offset' => (int) -7200,
		'isdst' => true,
		'abbr' => '-02'
	]
]
###########################
phpinfo()

date

date/time support => enabled
timelib version => 2017.09
"Olson" Timezone Database Version => 2018.9
Timezone Database => internal
Default timezone => America/Sao_Paulo
*/