8点45分用英语怎么说

a quarter to nine

时间在英语中表达方式有好几种：
例如此句：
1、a quarter to nine
2、three quarter past eight
3、eight forty five o,cloke
4、forty five past eight

Eight forty-five (最简单的方式)
forty-five past eight
three quarters past eight 八点过三刻
a quarter to nine 九点差一刻
fifteen to nine 九点差十五分

eight forty five。
a quarter to nine。

a quarter to nine