The clock would strike twelve in twenty minutes' time

问题描述:

The clock would strike twelve in twenty minutes' time
再过20分钟 大钟将敲12下
为什么要这样翻译呀 in不是 在...里的意思吗?
请详解

in 还可以表示在一段时间内
price of chinese real estate surged in the past five years.