From past experience I'd say he'd probably forgotten the time.

根据过去的经验，我想他可能把时间忘了。

《牛津词典》

You all came into a conversation where you first met the person, but after some time you may have met again and have forgotten their name.

你们都是在一次谈话中第一次见到这个人，但过了一段时间后，你们可能再次见面时已经忘记了他们的名字。

youdao

The time had come when Mary had forgotten to resent Martha's familiar talk.

到了玛丽不再厌恶玛莎唠叨的时候了。

youdao

It was the third time that month that Mary had forgotten something important.

VOA: special.2009.10.25

Now Buckle is a forgotten name today, but at one time he was just about as famous as Oswald Spengler who wrote The Decline of the West.

现在巴克尔已经被人们淡忘了，但他曾和写《西方的没落》的,奥斯瓦尔德，斯宾格勒一样著名。

耶鲁公开课 - 文学理论导论课程节选

Have you ever forgotten somebody's name at exactly the wrong time?

你是否曾在最不应该的时候,忘掉了某人的姓名？

耶鲁公开课 - 心理学导论课程节选

But judging by the tents parked outside Walmart, I am pretty certain that we have forgotten the value of time.

FORBES: Have American Shoppers Lost Their Minds?

"It blew me away, " label head Kiran Sande said of the first time he heard the hitherto forgotten music.

WSJ: A Restless Artist Saves His Sonic Mnemonic

It enables the organization to manage the forgotten competitive weapon: time.

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