A 16-month weekly planner is a small booklet that allows you to plan out each week for a period of 16 months instead of the standard 12 months. It is somewhat like a calendar, only it provides you the opportunity to plan out your week in a step by step fashion. It also typically includes features that a standard calendar would include such as information about holidays or time changes. It may also provide you with the space to write down important contact numbers or other important notes in addition to giving you enough space to write out your obligations for the week. There are many benefits to using this type of planner. It essentially combines a calendar and a daily planner into one and gives you the opportunity to look far beyond a given day or even a particular week.