diff --git a/includes/data-stores/abstract-wc-order-data-store-cpt.php b/includes/data-stores/abstract-wc-order-data-store-cpt.php
index fe8233e8bcf..4081bbe9e2f 100644
--- a/includes/data-stores/abstract-wc-order-data-store-cpt.php
+++ b/includes/data-stores/abstract-wc-order-data-store-cpt.php
@@ -108,8 +108,8 @@ abstract class Abstract_WC_Order_Data_Store_CPT extends WC_Data_Store_WP impleme
 		$order->set_props(
 			array(
 				'parent_id'     => $post_object->post_parent,
-				'date_created'  => 0 < $post_object->post_date_gmt ? wc_string_to_timestamp( $post_object->post_date_gmt ) : null,
-				'date_modified' => 0 < $post_object->post_modified_gmt ? wc_string_to_timestamp( $post_object->post_modified_gmt ) : null,
+				'date_created'  => $this->string_to_timestamp( $post_object->post_date_gmt ),
+				'date_modified' => $this->string_to_timestamp( $post_object->post_modified_gmt ),
 				'status'        => $post_object->post_status,
 			)
 		);
diff --git a/includes/data-stores/class-wc-coupon-data-store-cpt.php b/includes/data-stores/class-wc-coupon-data-store-cpt.php
index da05e16f2a2..8f9b7310144 100644
--- a/includes/data-stores/class-wc-coupon-data-store-cpt.php
+++ b/includes/data-stores/class-wc-coupon-data-store-cpt.php
@@ -123,8 +123,8 @@ class WC_Coupon_Data_Store_CPT extends WC_Data_Store_WP implements WC_Coupon_Dat
 			array(
 				'code'                        => $post_object->post_title,
 				'description'                 => $post_object->post_excerpt,
-				'date_created'                => 0 < $post_object->post_date_gmt ? wc_string_to_timestamp( $post_object->post_date_gmt ) : null,
-				'date_modified'               => 0 < $post_object->post_modified_gmt ? wc_string_to_timestamp( $post_object->post_modified_gmt ) : null,
+				'date_created'                => $this->string_to_timestamp( $post_object->post_date_gmt ),
+				'date_modified'               => $this->string_to_timestamp( $post_object->post_modified_gmt ),
 				'date_expires'                => metadata_exists( 'post', $coupon_id, 'date_expires' ) ? get_post_meta( $coupon_id, 'date_expires', true ) : get_post_meta( $coupon_id, 'expiry_date', true ), // @todo: Migrate expiry_date meta to date_expires in upgrade routine.
 				'discount_type'               => get_post_meta( $coupon_id, 'discount_type', true ),
 				'amount'                      => get_post_meta( $coupon_id, 'coupon_amount', true ),
diff --git a/includes/data-stores/class-wc-data-store-wp.php b/includes/data-stores/class-wc-data-store-wp.php
index 10222a73a27..ef738f4ac39 100644
--- a/includes/data-stores/class-wc-data-store-wp.php
+++ b/includes/data-stores/class-wc-data-store-wp.php
@@ -630,4 +630,16 @@ class WC_Data_Store_WP {
 		);
 		wp_cache_delete( 'lookup_table', 'object_' . $id );
 	}
+
+	/**
+	 * Converts a WP post date string into a timestamp.
+	 *
+	 * @since 4.7.0
+	 *
+	 * @param  string $time_string The WP post date string.
+	 * @return int|null The date string converted to a timestamp or null.
+	 */
+	protected function string_to_timestamp( $time_string ) {
+		return '0000-00-00 00:00:00' !== $time_string ? wc_string_to_timestamp( $time_string ) : null;
+	}
 }
diff --git a/includes/data-stores/class-wc-product-data-store-cpt.php b/includes/data-stores/class-wc-product-data-store-cpt.php
index c0e348a1da1..9e5690853b7 100644
--- a/includes/data-stores/class-wc-product-data-store-cpt.php
+++ b/includes/data-stores/class-wc-product-data-store-cpt.php
@@ -170,8 +170,8 @@ class WC_Product_Data_Store_CPT extends WC_Data_Store_WP implements WC_Object_Da
 			array(
 				'name'              => $post_object->post_title,
 				'slug'              => $post_object->post_name,
-				'date_created'      => 0 < $post_object->post_date_gmt ? wc_string_to_timestamp( $post_object->post_date_gmt ) : null,
-				'date_modified'     => 0 < $post_object->post_modified_gmt ? wc_string_to_timestamp( $post_object->post_modified_gmt ) : null,
+				'date_created'      => $this->string_to_timestamp( $post_object->post_date_gmt ),
+				'date_modified'     => $this->string_to_timestamp( $post_object->post_modified_gmt ),
 				'status'            => $post_object->post_status,
 				'description'       => $post_object->post_content,
 				'short_description' => $post_object->post_excerpt,
diff --git a/includes/data-stores/class-wc-product-variation-data-store-cpt.php b/includes/data-stores/class-wc-product-variation-data-store-cpt.php
index 5dd45b04536..534ba382ef8 100644
--- a/includes/data-stores/class-wc-product-variation-data-store-cpt.php
+++ b/includes/data-stores/class-wc-product-variation-data-store-cpt.php
@@ -62,8 +62,8 @@ class WC_Product_Variation_Data_Store_CPT extends WC_Product_Data_Store_CPT impl
 			array(
 				'name'              => $post_object->post_title,
 				'slug'              => $post_object->post_name,
-				'date_created'      => 0 < $post_object->post_date_gmt ? wc_string_to_timestamp( $post_object->post_date_gmt ) : null,
-				'date_modified'     => 0 < $post_object->post_modified_gmt ? wc_string_to_timestamp( $post_object->post_modified_gmt ) : null,
+				'date_created'      => $this->string_to_timestamp( $post_object->post_date_gmt ),
+				'date_modified'     => $this->string_to_timestamp( $post_object->post_modified_gmt ),
 				'status'            => $post_object->post_status,
 				'menu_order'        => $post_object->menu_order,
 				'reviews_allowed'   => 'open' === $post_object->comment_status,