“今天是星期几”的英语怎么说?

问题描述:

“今天是星期几”的英语怎么说?
1、what day is it today还是what day is it today(有没有“it”的?
2、what date is it today是问日期的,正确的问法有"it"的吗?

问星期what day is it today?
问日期what is the date today?