diff --git a/includes/api/legacy/v1/class-wc-api-orders.php b/includes/api/legacy/v1/class-wc-api-orders.php
index de02ee53c64..4aeac9060a8 100644
--- a/includes/api/legacy/v1/class-wc-api-orders.php
+++ b/includes/api/legacy/v1/class-wc-api-orders.php
@@ -116,9 +116,9 @@ class WC_API_Orders extends WC_API_Resource {
 		$order_data = array(
 			'id'                        => $order->get_id(),
 			'order_number'              => $order->get_order_number(),
-			'created_at'                => $this->server->format_datetime( $order->get_date_created(), false, true ) ),
-			'updated_at'                => $this->server->format_datetime( $order->get_date_modified(), false, true ) ),
-			'completed_at'              => $this->server->format_datetime( $order->get_date_completed(), false, true ) ),
+			'created_at'                => $this->server->format_datetime( $order->get_date_created(), false, true ),
+			'updated_at'                => $this->server->format_datetime( $order->get_date_modified(), false, true ),
+			'completed_at'              => $this->server->format_datetime( $order->get_date_completed(), false, true ),
 			'status'                    => $order->get_status(),
 			'currency'                  => $order->get_currency(),
 			'total'                     => wc_format_decimal( $order->get_total(), 2 ),
diff --git a/includes/api/legacy/v2/class-wc-api-orders.php b/includes/api/legacy/v2/class-wc-api-orders.php
index c13804efe2a..8dc06a54d3a 100644
--- a/includes/api/legacy/v2/class-wc-api-orders.php
+++ b/includes/api/legacy/v2/class-wc-api-orders.php
@@ -156,9 +156,9 @@ class WC_API_Orders extends WC_API_Resource {
 		$order_data = array(
 			'id'                        => $order->get_id(),
 			'order_number'              => $order->get_order_number(),
-			'created_at'                => $this->server->format_datetime( $order->get_date_created(), false, true ) ),
-			'updated_at'                => $this->server->format_datetime( $order->get_date_modified(), false, true ) ),
-			'completed_at'              => $this->server->format_datetime( $order->get_date_completed(), false, true ) ),
+			'created_at'                => $this->server->format_datetime( $order->get_date_created(), false, true ),
+			'updated_at'                => $this->server->format_datetime( $order->get_date_modified(), false, true ),
+			'completed_at'              => $this->server->format_datetime( $order->get_date_completed(), false, true ),
 			'status'                    => $order->get_status(),
 			'currency'                  => $order->get_currency(),
 			'total'                     => wc_format_decimal( $order->get_total(), $dp ),
@@ -1534,7 +1534,7 @@ class WC_API_Orders extends WC_API_Resource {
 
 			$order_refund = array(
 				'id'         => $refund->id,
-				'created_at' => $this->server->format_datetime( $refund->get_date_created(), false, true ) ),
+				'created_at' => $this->server->format_datetime( $refund->get_date_created(), false, true ),
 				'amount'     => wc_format_decimal( $refund->get_amount(), 2 ),
 				'reason'     => $refund->get_reason(),
 				'line_items' => $line_items,
diff --git a/includes/api/legacy/v3/class-wc-api-orders.php b/includes/api/legacy/v3/class-wc-api-orders.php
index 6947e560eba..498be287f41 100644
--- a/includes/api/legacy/v3/class-wc-api-orders.php
+++ b/includes/api/legacy/v3/class-wc-api-orders.php
@@ -162,9 +162,9 @@ class WC_API_Orders extends WC_API_Resource {
 			'id'                        => $order->get_id(),
 			'order_number'              => $order->get_order_number(),
 			'order_key'                 => $order->get_order_key(),
-			'created_at'                => $this->server->format_datetime( $order->get_date_created(), false, true ) ),
-			'updated_at'                => $this->server->format_datetime( $order->get_date_modified(), false, true ) ),
-			'completed_at'              => $this->server->format_datetime( $order->get_date_completed(), false, true ) ),
+			'created_at'                => $this->server->format_datetime( $order->get_date_created(), false, true ),
+			'updated_at'                => $this->server->format_datetime( $order->get_date_modified(), false, true ),
+			'completed_at'              => $this->server->format_datetime( $order->get_date_completed(), false, true ),
 			'status'                    => $order->get_status(),
 			'currency'                  => $order->get_currency(),
 			'total'                     => wc_format_decimal( $order->get_total(), $dp ),
@@ -1579,7 +1579,7 @@ class WC_API_Orders extends WC_API_Resource {
 
 			$order_refund = array(
 				'id'         => $refund->id,
-				'created_at' => $this->server->format_datetime( $refund->get_date_created(), false, true ) ),
+				'created_at' => $this->server->format_datetime( $refund->get_date_created(), false, true ),
 				'amount'     => wc_format_decimal( $refund->get_amount(), 2 ),
 				'reason'     => $refund->get_reason(),
 				'line_items' => $line_items,