YOU SAID:

Run, and don't stop running until the time has run out.

INTO JAPANESE

走って、時間がなくなるまで走るのをやめないでください。

BACK INTO ENGLISH

Run and don't stop running until the time runs out.

INTO JAPANESE

実行し、時間がなくなるまで実行を停止しないでください。

BACK INTO ENGLISH

Run and don't stop running until the time runs out.