So can working through lunch or getting up a half hour earlier (or staying up a half hour later).

当然也可以午饭时候工作，或是早起半个钟头(或者晚睡半个钟头)。

youdao

I could stuff myself with ten chocolate bars and half an hour later eat a big meal.

我可以给自己塞下10块巧克力，并在半小时后再大吃一顿。

《柯林斯英汉双解大词典》

Uh, does it begins half an hour later?

呃，这半小时后才开始吗？

youdao

A half hour later,it happened.

VOA: special.2010.05.01

After a six-hour public hearing, ethics committee members went into closed session, then emerged about a half hour later with their decision.

CNN: Gingrich Faces Reprimand, $300,000 Penalty

That was a selling point for photographers Heather Waraksa and Jonathan Mehring, who arrived at Apple's new Grand Central store in New York and, as such, found themselves leaning against a wall, eating bagels in line a half hour later.

CNN: Doug Gross,

Half an hour later and the three men and single lady were still standing.

BBC: The Merchant of Venice: A protest within a play