今天星期几用英语怎么说

"What day is it today?" is how you ask in English.

If you want to shorten your response, you could use the phrase "What's the date today?" which would be a more direct translation of "今天星期几用英语怎么说". However, this phrase may not always be understood by everyone as it doesn't directly refer to the current day of the week.

Another way to simplify the question is to simply say "Hey, what day is it?" which is a more conversational and less formal way of asking about the date.

It's worth noting that if you are asking about the day in a specific country or region, you might need to add the name of that country or region to your question. For example, "What day is it today in the United States?" or "What day is it today in China?".