I anticipate his arrival at four o 'clock.

我期待他4点钟到达。

《新英汉大辞典》

We have tea at four o 'clock in the afternoon.

我们在下午四点钟喝茶。

youdao

He asked me to call for him at four o 'clock in the afternoon.

他要我下午四点钟来接他。

youdao

She was nineteen. Those who knew Ida Tarbell in college say she would wake up at four o'clock in the morning to study.

VOA: special.2010.04.25

When I had made an end of these labors, it was four o'clock in the morning.

VOA: special.2009.05.16

It was four o'clock in the afternoon when Paul woke up.

VOA: special.2009.04.11

Then, at four o'clock in the afternoon, twenty-four hours after the mortar fell on his friends and neighbors while they waited to buy bread, he will bend down and pick up his bow.

NPR: Excerpt: 'The Cellist Of Sarajevo'

It was four o'clock in the afternoon and the kitchen was square and gray and quiet.

NPR: Excerpt: 'The Member of the Wedding'

Had you arrived from Mars at around four o'clock a couple of Saturdays back, you would have wondered what all the fuss was about.

BBC: Chick Young's view