Looking on the internet deeply has found these results:

What have you been up to today is the most popular phrase on the web.

What has your day entailed 10 results on the web	What have you been up to today 11,260 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It doesn't look like this phrase is very popular! The search could not find any examples on the internet.	Hey Wave, what have you been up to today? I've had pretty relaxed day. I went for a swim at the beach and the sun was shining, so no complaints! What does a ... Aug 23, 2009 ... ... more casual formulation, changing the verb but essentially the same question, uses the present perfect: "So what have you been up to today? What have you been up to today? Based on a VSCC thread I found interesting, Not necessarily A7 but no rude ones! Spent 3 1/2 hours putting ... "What have you been up to today?" is a question that asks what you have done all day, like work or leisure activities, in the past tense. Q: "What have you been ...

What has your day entailed

10 results on the web

What have you been up to today

11,260 results on the web

More popular!

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

Hey Wave, what have you been up to today? I've had pretty relaxed day. I went for a swim at the beach and the sun was shining, so no complaints! What does a ...
Aug 23, 2009 ... ... more casual formulation, changing the verb but essentially the same question, uses the present perfect: "So what have you been up to today?
What have you been up to today? Based on a VSCC thread I found interesting, Not necessarily A7 but no rude ones! Spent 3 1/2 hours putting ...
"What have you been up to today?" is a question that asks what you have done all day, like work or leisure activities, in the past tense. Q: "What have you been ...