There's a connecting flight at noon.

　　中午有一趟相銜接的航班。

　　I'll call you guys tomorrow. Noon-ish.

　　我明天中午左右給你們打電話。

　　The long day of meetings started at noon.

　　漫長(zhǎng)的會(huì)議日從中午開(kāi)始了。