Roomify / bat

                  // We are in hours and can add something

                  $end_event->add(new \DateInterval('PT1H'));

                }

                elseif (($current_value != $hour_value) && ($current_value !== NULL)) {

                  // Value just switched - let us wrap up with current event and start a new one

                  $normalized_events[$unit][] = new Event($start_event, $end_event, $unit, $current_value);

                  // Start event becomes the end event with a minute added

                  $start_event = clone($end_event->add(new \DateInterval('PT1M')));

                  // End event comes the current point in time

                  $end_event = new \DateTime($year . '-' . $month . '-' . substr($day, 1) . ' ' . substr($hour, 1) . ':00');

                  $current_value = $hour_value;

                }

                if ($current_value === NULL) {

                  // Got into hours and still haven't created an event so

                  $start_event = new \DateTime($year . '-' . $month . '-' . substr($day, 1) . ' ' . substr($hour, 1) . ':00');

              // We are adding a whole day so the end event gets moved to the end of the day we are adding

              $end_event = new \DateTime($year . '-' . $month . '-' . substr($day, 1) . ' ' . '23:59');

            }

            elseif (($current_value !== $value) && ($current_value !== NULL)) {

              // Value just switched - let us wrap up with current event and start a new one

              $normalized_events[$unit][] = new Event($start_event, $end_event, $unit, $current_value);

              // Start event becomes the end event with a minute added

              $start_event = clone($end_event->add(new \DateInterval('PT1M')));

              // End event becomes the current day which we have not account for yet

              $end_event = new \DateTime($year . '-' . $month . '-' . substr($day, 1) . ' ' . '23:59');

              $current_value = $value;

            }

            if ($current_value === NULL) {

              // We have not created an event yet so let's do it now

              $start_event = new \DateTime($year . '-' . $month . '-' . substr($day, 1) . ' ' . '00:00');