Every Humanitarian Country Team will develop a planning calendar suited to their needs. The planning timeframe is flexible and can start at any point in the year.
In general by September a Humanitarian Needs Overview is developed. This then informs the development of the Humanitarian Response Plan (November but as agreed by the HCT). The Global Appeal is launched in December.
The frequency of response monitoring and reporting is determined by the HCT as well but the guidance recommends response monitoring and reporting on a quarterly basis, which should be used to adjust planning documents as necessary.