Isaiah 38:8-10

New King James Version

⁸ Behold, I will bring the shadow on the sundial, which has gone down with the sun on the sundial of Ahaz, ten degrees backward.” So the sun returned ten degrees on the dial by which it had gone down.

⁹ This is the writing of Hezekiah king of Judah, when he had been sick and had recovered from his sickness: