・・・The school year of various countries are determined by giving priority to their own situation due to different domestic circumstances such as geographical location, climate, religions and other events.
「9月入学は国際基準か?」(Is a September beginning the international standard?) 国際基準とは、世界的な共通の基準という意味であるから、9月入学が国際基準で あるならば、日本も9月からの入学、という国際基準にするべきだ、という事になるだろう。
・・・The term "the standard international school year" implies that the school year is the same all over the world. But there are no international agreements that school years begin in September.