how long与how much time的意思可否相同?举例说明

how long与how much time的意思可否相同?举例说明
how long与how much time的意思可否相同?
举例说明

how long与how much time的意思可否相同?举例说明
how much time=多少时间
例：how much time you have spend to do this work?（24 hours)
how long = 几天
例：how long is your vacation?( 2days)
如果,how much time is your vacation,那好像是要问对方用了多少时间,有点怪怪的.

我个人认为相同.

都是多长时间
how long 时间段要长
how much time 时间段比较短

在表示时间长短时可以相同。
how long 时间段要长
how much time 时间段比较短