diff --git a/src/wp-includes/customize/class-wp-customize-date-time-control.php b/src/wp-includes/customize/class-wp-customize-date-time-control.php
index ac31c418bf..607799768c 100644
--- a/src/wp-includes/customize/class-wp-customize-date-time-control.php
+++ b/src/wp-includes/customize/class-wp-customize-date-time-control.php
@@ -227,7 +227,7 @@ class WP_Customize_Date_Time_Control extends WP_Customize_Control {
 
 		if ( $tz_string ) {
 			try {
-				$tz = new DateTimezone( $tz_string );
+				$tz = new DateTimeZone( $tz_string );
 			} catch ( Exception $e ) {
 				$tz = '';
 			}