"10:45" in Engpsh is usually expressed as "ten forty-five" or "quarter to eleven". This convention comes from the way people tell time using the twelve-hour clock, where hours are counted from 1 to 12, and minutes are counted in increments of five (e.g. "quarter past", "half past", "quarter to").
Here are some examples of how to use this expression in context:
Engpsh: "Can you meet me at ten forty-five?"
Chinese: "你能在 10:45 的时候跟我见面吗？"
Engpsh: "I'll be ready by quarter to eleven."
Chinese: "我在 11 点差 15 分钟前就准备好了。"