Work time management of the health personnel of the health institutions in the sub-prefecture of Abomey-Calavi (Benin) This study was carried out with a sample size of 130, comprising health personnel, patients, members of management committees and twelve health institutions of the subprefecture of Abomey-Calavi. The survey was carried out through observation, one-on-one interviews and consultation of documents. The results reveal that work time is poorly managed in almost all of the programmes surveyed. There exist long waiting lines in almost all the health programmes. On average, the traffic report per service is 82 and 10 out of 12 of the programmes investigated do not have an agenda of activities.