The SNSF may extend this period on request if applicants are able to cite good reasons for this. The following reasons are accepted: maternity, paternity, adoption or parental leave; inability to work due to illness or accident; care duties; services that benefit the general public, particularly military or civilian service; continuing education in connection with the applicant’s research activities, particularly internships or clinical work and preparatory activities connected to the dissertation, e.g. participation in classes at a doctoral school.