in two day's time 这句话是两天以内 还是两天以后？

Question

为什么要加time 呢， 直接用， in two days ，不可以吗？

Answer 1

用's 来修饰这个时间time，你可以说in two days.

下面是国外语法的解释，希望对你又帮助。
Use apostrophes in phrases such as in two days' time, 12 years' imprisonment and six weeks' holiday, where the time period (two days) modifies a noun (time), but not in nine months pregnant or three weeks old, where the time period is adverbial (modifying an adjective such as pregnant or old)

Answer 2

两天之内，in two days表示两天之后，但是在口语中也有两天之内的意思，例如In just two days 在短短两天之内。

Answer 3

in+时间段 = 时间段+later = in +时间段's +time
都是指以后