protected function set_date_prop( $prop, $value ) {
		try {
			if ( empty( $value ) ) {
				$this->set_prop( $prop, null );
				return;
			}

			if ( is_a( $value, 'WC_DateTime' ) ) {
				$datetime = $value;
			} elseif ( is_numeric( $value ) ) {
				// Timestamps are handled as UTC timestamps in all cases.
				$datetime = new WC_DateTime( "@{$value}", new DateTimeZone( 'UTC' ) );
			} else {
				// Strings are defined in local WP timezone. Convert to UTC.
				if ( 1 === preg_match( '/^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2})(Z|((-|\+)\d{2}:\d{2}))$/', $value, $date_bits ) ) {
					$offset    = ! empty( $date_bits[7] ) ? iso8601_timezone_to_offset( $date_bits[7] ) : wc_timezone_offset();
					$timestamp = gmmktime( $date_bits[4], $date_bits[5], $date_bits[6], $date_bits[2], $date_bits[3], $date_bits[1] ) - $offset;
				} else {
					$timestamp = wc_string_to_timestamp( get_gmt_from_date( gmdate( 'Y-m-d H:i:s', wc_string_to_timestamp( $value ) ) ) );
				}
				$datetime = new WC_DateTime( "@{$timestamp}", new DateTimeZone( 'UTC' ) );
			}

			// Set local timezone or offset.
			if ( get_option( 'timezone_string' ) ) {
				$datetime->setTimezone( new DateTimeZone( wc_timezone_string() ) );
			} else {
				$datetime->set_utc_offset( wc_timezone_offset() );
			}

			$this->set_prop( $prop, $datetime );
		} catch ( Exception $e ) {} // @codingStandardsIgnoreLine.
	}