How long does the tour take?
这趟旅游要花多长时间?
A: Excuse me. How long does the tour take?
打扰一下，这趟旅游要花多长时间?
B: It takes a whole day.
需要一整天。
What time does the tour leave?
旅游团什么时候出发?
A: What time does the tour leave?
旅游团什么时候出发?
B: The bus leaves at the Xinghai Square at 8:00 a.m.
观光车将于上午八点离开星海广场。
有关询问一趟路线旅行所用时间及出发时间、地点等 类似的表达法 还有：
From where does the bus leave?
车从哪儿出发呢?
How long do we stop here?
我们在这儿停多长时间?
What time should we be back to the bus?
我们要什么时间回到车上来?