連れん日じつ連れん夜や

noun, adverb

day and night; every day and every night; around the clock

Emphasizes continuous effort or occurrence over many days and nights, often used in contexts of hard work, study, or persistent activity.

• 試し験けん前まえは連れん日じつ連れん夜や、図と書しょ館かんで勉べん強きょうした。

  Before the exam, I studied at the library day and night.

• 連れん日じつ連れん夜やの残ざん業ぎょうで疲つかれがたまっている。

  I'm exhausted from working overtime every day and night.