I ran across this text:
From October 17-20, 2016, we will be attending the electric appliances convention, in Spain.
Meaning that we will be attending the convention between October 17th and October 20th (inclusive).
My questions are:
Is it correct to write "From October 17-20" to express the aforementioned meaning?
Would it be incorrect to write "On October 17-20"? (A native speaker told me that it would be, because "on" can only be used when referring to a single day and is not suitable for a range).
Would it be correct to write "During October 17-20", and if so, is it considered preferable to "from"?