diff --git a/wp-admin/includes/class-wp-community-events.php b/wp-admin/includes/class-wp-community-events.php
index 486739349e..37c71be412 100644
--- a/wp-admin/includes/class-wp-community-events.php
+++ b/wp-admin/includes/class-wp-community-events.php
@@ -158,9 +158,13 @@ class WP_Community_Events {
 				$response_body['location']['description'] = $this->user_location['description'];
 			}
 
+			/*
+			 * Store the raw response, because events will expire before the cache does.
+			 * The response will need to be processed every page load.
+			 */
 			$this->cache_events( $response_body, $expiration );
 
-			$response_body = $this->trim_events( $response_body );
+			$response_body['events'] = $this->trim_events( $response_body['events'] );
 			$response_body = $this->format_event_data_time( $response_body );
 
 			return $response_body;
@@ -346,7 +350,10 @@ class WP_Community_Events {
 	 */
 	public function get_cached_events() {
 		$cached_response = get_site_transient( $this->get_events_transient_key( $this->user_location ) );
-		$cached_response = $this->trim_events( $cached_response );
+
+		if ( isset( $cached_response['events'] ) ) {
+			$cached_response['events'] = $this->trim_events( $cached_response['events'] );
+		}
 
 		return $this->format_event_data_time( $cached_response );
 	}
@@ -435,44 +442,44 @@ class WP_Community_Events {
 	 *
 	 * @since 4.8.0
 	 * @since 4.9.7 Stick a WordCamp to the final list.
+	 * @since 5.6.0 Accepts and returns only the events, rather than an entire HTTP response.
 	 *
-	 * @param array $response_body The response body which contains the events.
+	 * @param array $events The events that will be prepared.
 	 * @return array The response body with events trimmed.
 	 */
-	protected function trim_events( $response_body ) {
-		if ( isset( $response_body['events'] ) ) {
-			$wordcamps = array();
-			$today     = current_time( 'Y-m-d' );
+	protected function trim_events( array $events ) {
+		$future_events = array();
 
-			foreach ( $response_body['events'] as $key => $event ) {
-				/*
-				 * Skip WordCamps, because they might be multi-day events.
-				 * Save a copy so they can be pinned later.
-				 */
-				if ( 'wordcamp' === $event['type'] ) {
-					$wordcamps[] = $event;
-					continue;
-				}
+		foreach ( $events as $event ) {
+			/*
+			 * The API's `date` and `end_date` fields are in the _event's_ local timezone, but UTC is needed so
+			 * it can be converted to the _user's_ local time.
+			 */
+			$end_time = (int) $event['end_unix_timestamp'];
 
-				// We don't get accurate time with timezone from API, so we only take the date part (Y-m-d).
-				$event_date = substr( $event['date'], 0, 10 );
-
-				if ( $today > $event_date ) {
-					unset( $response_body['events'][ $key ] );
-				}
-			}
-
-			$response_body['events'] = array_slice( $response_body['events'], 0, 3 );
-			$trimmed_event_types     = wp_list_pluck( $response_body['events'], 'type' );
-
-			// Make sure the soonest upcoming WordCamp is pinned in the list.
-			if ( ! in_array( 'wordcamp', $trimmed_event_types, true ) && $wordcamps ) {
-				array_pop( $response_body['events'] );
-				array_push( $response_body['events'], $wordcamps[0] );
+			if ( time() < $end_time ) {
+				array_push( $future_events, $event );
 			}
 		}
 
-		return $response_body;
+		$future_wordcamps = array_filter(
+			$future_events,
+			function( $wordcamp ) {
+				return 'wordcamp' === $wordcamp['type'];
+			}
+		);
+
+		$future_wordcamps    = array_values( $future_wordcamps ); // Remove gaps in indices.
+		$trimmed_events      = array_slice( $future_events, 0, 3 );
+		$trimmed_event_types = wp_list_pluck( $trimmed_events, 'type' );
+
+		// Make sure the soonest upcoming WordCamp is pinned in the list.
+		if ( $future_wordcamps && ! in_array( 'wordcamp', $trimmed_event_types, true ) ) {
+			array_pop( $trimmed_events );
+			array_push( $trimmed_events, $future_wordcamps[0] );
+		}
+
+		return $trimmed_events;
 	}
 
 	/**
diff --git a/wp-includes/version.php b/wp-includes/version.php
index bffd69a9fc..bac267d646 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.6-alpha-49144';
+$wp_version = '5.6-alpha-49145';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.