18:48用英语怎么说

eighteen forty eight
twelve to nineteen

twelve to seven

twelve to eighteen
也可以说 eighteen pass forty eight

twelve to eighteen
也可以说 eighteen pass forty eight

如果是时间的话:twelve to nineteen clock
eighteen forty eight clock

有三种表达均可：
eighteen forty eight
eighteen pass forty eight
twelve to eighteen
第一种最为常用。