He always says 'time is money' and strives not to waste a single second.

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.

By chance, he met my old friend.

In the early morning, he brewed coffee and started his day.

He completed the project in a week.

I'm always busy during the daytime, and I only have time to rest at night.

He had been working overseas for an extended period of time.