上学期间的晚上用英语怎么说？

During the night at school.应该是这样的，语法你再确定确定。仅供参考。

on school nights

Being at school at nightin the evening
答案补充
晚上at the end of the day
evening（用在句中前面+介词in)night(用在句中前面+介词at)