What is the implied subject in 夏から秋にかける?


Consider

> **夏から秋にかけて** 台風がよく来ます。
>
> Typhoons frequently come **from summer to autumn**.

I know that 夏から秋にかけて effectively means "from summer to autumn". But more
literally I assume it means "from summer to autumn, (something) hangs".

Does anyone know _what_ "hangs" though (as in, what is the implied subject
missing from 夏から秋にかける)? Is it something like 時?

> 時が夏から秋にかける
>
> Time hangs from summer to autumn.

Or is it the subject of the main clause (in this case: typhoons)?

> 台風が夏から秋にかける
>
> _Typhoons_ hang from summer to autumn.

I understand this might be an odd curiosity for some, but my goal is to
understand why 掛ける is being used to convey some notion of "time over some
period".




If I'm incorrect in this, someone please correct me. But as far as I'm aware,
～から～にかけて is a set phrase, and かける is never used in the dictionary form as in
the example you created. I think a natural English translation would be
"(_____) spanning (from) ～ to ～"; I wouldn't try to think of it in terms of
"hanging". Also, in this pattern, it's typically (always?) written in
hiragana. So it's not necessarily 掛ける (although not necessarily NOT 掛ける
either).

The subject should be pretty obvious depending on the context, but it won't be
explicitly stated. So your example would be " _ **the time period**_ spanning
from summer to autumn", but you won't see 時(間)が. As you'll see in my example
below, it could be a physical area/space as well.

A few things to note with this pattern. The first is that the start and end
points are not exact or definite. You can see that summer and autumn are not
exact points in time, but a general period.

Next is that the second clause is not something that is a one-time
thing/occurrence, but something that is continual/continuous or recurring. In
your case, typhoons occurring often.

Here is an excerpt from my grammar book:

> ～から～にかけて 【～から～までの間】
>
> []{ポイント}
> 「～から～まで」は始まりと終わりがはっきりしていて、その間ずっと同じ状態が続いてることを表す。「～から～にかけて」は始まりと終わりがそれほどはっきりしていない。後の文は一回だけのことではなく、連続的なこと。
>
> × A駅からB駅にかけて、わたしのアパートがあります。  
>  ○ A駅からB駅にかけてアパートがたくさん並んでいる。
>
> × [夜中]{よ・なか}から明け[方]{がた}にかけて、チンさんが訪ねてきた。  
>  ○ 夜中から明け方にかけて弱い地震が数回あった。

