1.
full-time (school system); day school
A school system where students attend classes during regular daytime hours on a full-time basis, as opposed to evening or correspondence programs.
A compound of 全日 (all day/full day) and 制 (system). Most commonly used in the context of Japanese high schools, which are categorized into three types: 全日制 (full-time), 定時制 (part-time/evening), and 通信制 (correspondence). The vast majority of Japanese high school students attend 全日制 programs.