function dozent_datetime_format( $timestamp = null ) {

		if ( ! $timestamp ) {
			$timestamp = dozent_time();
		}

		$date = date_i18n( get_option( 'date_format' ), $timestamp ) . ' ' . date_i18n( get_option( 'time_format' ), $timestamp );

		/**
		 * Filter output of dozent_datetime_format();
		 *
		 * @see dozent_datetime_format();
		 *
		 * @param  string  $date  Date format
		 * @param  int  $timestamp  Timestamp
		 */

		return apply_filters( 'dozent_datetime_format', $date, $timestamp );
	}