You should always be prepared for the time of need.

I woke up at the witching hour.

Following the customs of the time, they celebrated the festival.

During rush hour, the trains are very crowded.

Please verify your answer.

He keeps the words 'Don't hesitate to correct your mistakes when you make them' in his heart, always striving for self-improvement.

I came, I saw, and I won.

My class starts at eleven o'clock.

I eat lunch at twelve o'clock.

Greenwich Mean Time is the standard that determines the time of the world.