This page shows a variety of sample recurring calendars to help you understand how to configure various intervals.
Every other day in December:
Every week on Tuesdays and Thursdays in December:
Every month on the first week day, February through December:
Every March on the second Monday. This is configured for February through December of the same year, so this would only run once this March. When using a yearly calendar, you’ll likely want a much longer period of time.