round the clock

idiomatic

(idiomatic) nonstop, 24 hours per day.

Japanese Meaning

終日、休みなく、途切れなく活動している状態 / 昼夜を問わず、24時間体制で物事が行われる様子

The emergency team worked round the clock to evacuate residents before the floodwaters rose.

救助チームは洪水の水位が上がる前に住民を避難させるため、24時間体制で働いた。

Sense（1）

(idiomatic) nonstop, 24 hours per day.

He had his team work round the clock to get the project finished in time.