Use "정각" in a sentence

1. 9시 정각 영국 순양전함과 순양함들은 남동쪽으로 횡대 진행을 하던 독일군 함선 5척을 뒤쫓았다.

By nine o'clock that morning the British battlecruisers and cruisers were in hot pursuit of the five German vessels, which had taken flight in line abreast to the southeast.