An event every year that begins at 12:00 am on day 20 of November, repeating indefinitely
An event every year that begins at 12:00 am on day 6 of December, repeating indefinitely
An event every year that begins at 12:00 am on day 8 of March, repeating indefinitely
An event every year that begins at 12:00 am on day 21 of March, repeating indefinitely
