今天星期几的英文怎么说

星期几的英文表达是 "What day of the week is it?".

该表达的来源是英语中星期（week）和几（day）的组合。

例句：

Can you tell me what day of the week it is today?
(你能告诉我今天星期几吗？)
I always forget what day of the week it is.
(我总是忘记今天是星期几。)
Let's make plans for next weekend, but first, what day of the week is it today?
(让我们为下周末做计划，但首先，今天是星期几？)