必要 ひつよう労働 ろうどう時間 じかんでしょう
hitsuyōrōdōjikandeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 必要労働時間

1. Probably necessary working hours.; Likely required work time.

Polite
Presumptive
Conjecture
Economics