Guests must check out before noon, or they will be charged for the day.

旅客必须于中午前办清手续离开， 否则将收取全日费用。

《新英汉大辞典》

I will get dressed before noon.

我将在中午之前穿好衣服。

youdao

When I got into college, things changed. I suddenly found myself out of class before noon time.

当我进入大学后，情况发生了变化。我突然发现自己不到中午就下课了。

youdao

It makes the locals get up before noon for a perfect start of the weekend.

BBC: Weekend in Kiev

And shortly before noon on Thursday, he made the short flight from London to Paris.

NPR: Beckham Joins PSG And Pledges To Play For Free

Shares were below early highs, but still up more than 23% a few minutes before noon.

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