But yeah, I think you'd probably be better off asking one of the organizers here about like this specific event.

你最好去那边问问这次活动的组织者。

关于世界地球日 - SpeakingMax英语口语达人

In another example, you can use a "when" question in order to ask about the timing of a specific event.

在下面这个例子中，你可以用When 问句来询问一个具体活动的时间。

When 课堂 - SpeakingMax英语口语达人