<?php date_default_timezone_set('UTC'); $dt = new DateTime('2016-04-22 17:00:00', new DateTimeZone('America/Sao_Paulo')); echo $dt->format("U: Y-m-d H:i:s T\n"); // Result: // 1461355200 (PHP 5.6.19) -> 04/22/2016 20:00 (UTC) // 1461344400 (PHP 7.0.5) -> 04/22/2016 17:00 (UTC) $dt = new DateTime('2016-04-22 20:00:00', new DateTimeZone('UTC')); $dt->setTimezone(new DateTimeZone('America/Sao_Paulo')); echo $dt->format("U: Y-m-d H:i:s T\n"); // Result: // 1461355200 (PHP 5.6.19) -> 04/22/2016 20:00 (UTC) // 1461355200 (PHP 7.0.5) -> 04/22/2016 20:00 (UTC)
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