4 sentences

1. 明天九点半准时上课。

   míng​tiān jiǔ​diǎn​bàn zhǔn​shí shàng​kè.

   Class starts tomorrow promptly at 9:30.

   Source: OpenSubtitles

2. 现在是早上九点半。

   xiàn​zài shì zǎo​shang jiǔ​diǎn​bàn.

   It's 9:30 in the morning.

   Source: OpenSubtitles

3. 她九点半左右离开了教堂。

   tā jiǔ​diǎn​bàn zuǒ​yòu lí​kāi le jiào​táng.

   She left the church around 9:30.

   Source: OpenSubtitles

4. 股市今天早上九点半准时开盘。

   gǔ​shì jīn​tiān zǎo​shang jiǔ​diǎn​bàn zhǔn​shí kāi​pán.

   The stock market opened on time at 9:30 this morning.

   Source: Dong Chinese Dictionary