diff -r 34716fd837a4 -r be944660c56a wp/wp-includes/customize/class-wp-customize-date-time-control.php
--- a/wp/wp-includes/customize/class-wp-customize-date-time-control.php	Tue Dec 15 15:52:01 2020 +0100
+++ b/wp/wp-includes/customize/class-wp-customize-date-time-control.php	Wed Sep 21 18:19:35 2022 +0200
@@ -81,8 +81,8 @@
 	public function json() {
 		$data = parent::json();
 
-		$data['maxYear']          = intval( $this->max_year );
-		$data['minYear']          = intval( $this->min_year );
+		$data['maxYear']          = (int) $this->max_year;
+		$data['minYear']          = (int) $this->min_year;
 		$data['allowPastDate']    = (bool) $this->allow_past_date;
 		$data['twelveHourFormat'] = (bool) $this->twelve_hour_format;
 		$data['includeTime']      = (bool) $this->include_time;
@@ -245,7 +245,7 @@
 				$timezone_info['description'] = '';
 			}
 		} else {
-			$formatted_gmt_offset = $this->format_gmt_offset( intval( get_option( 'gmt_offset', 0 ) ) );
+			$formatted_gmt_offset = $this->format_gmt_offset( (int) get_option( 'gmt_offset', 0 ) );
 
 			$timezone_info['description'] = sprintf(
 				/* translators: 1: UTC abbreviation and offset, 2: UTC offset. */