The Events Calendar 3.9.1 // Change RSS Time

gistfile1.php

add_filter( 'get_post_time', 'events_rss2_gmt_pubdate_correction', 20 , 3 );

function events_rss2_gmt_pubdate_correction($time, $d, $gmt) {

	global $post;

	// Amount of hours to change, equals GMT offset
	$offset = -7;

	if ( $post->post_type === TribeEvents::POSTTYPE && is_feed() ) {

		$time = new DateTime( tribe_get_start_date( $post->ID, false, $d ) );
		$time->modify( $offset.' hour' );
		$time = $time->format( TribeDateUtils::DBDATETIMEFORMAT );
		$time = mysql2date( $d, $time );

	}

	return $time;
}