All right, then what is haiku?
I know haiku can be far longer than 17 syllables. I just picked that because it's the simplest.
Since I don't know Japanese, this (from google translate) is all I can do:
きっと時間を持て余しているのでしょう。
そうでなければ、
こんなことは書かないでしょう。
I'm sure this is wrong (and google translate swapped "I" for "you", which shows you how accurate it is). But since you're so confident about your Japanese, would you like to do better?
No, that's not the challenge. You have to make it work as a haiku in Japanese. You have the retain the 5-7-5 mora form.