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<?php $d = new DateTime('@-21474836470'); $d->setTimezone(new DateTimeZone(date_default_timezone_get())); echo $d->format('c'); echo "\n"; echo $d->format('U'); echo "\n"; $d = new DateTime('1289-06-27T15:58:22'); echo $d->format('c'); echo "\n"; echo $d->format('U');

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