汽车什么时候出发？
When does the bus leave?
A common way to ask time in Chinese is to use 什么时候 shénme shíhòu. This is equivalent of 'When' in English. Be careful with the word order when you want to inquire about when something happens.
| Subject | + 什么时候 | + V / VP |
|---|---|---|
| 汽车 | 什么时候 | 出发？ |
| The bus | when | leaves? |
| 汽车 | 什么时候 | 到丽江？ |
| The bus | when | arrives at Lijiang? |
| 火车 | 什么时候 | 到站？ |
| The train | when | arrives at the station? |