At the beginning/in the middle/at the end

English as a Second Language English Vocabulary, Grammar and Idioms
1

Hi! Is it completely incorrect to use “in the beginning” in the following context:
“in the beginning of February”? Should one use “at the beginning of February”,“in the middle of February”,“at the end of February” instead? Thank you in advance.Best wishes,Oinas.

2

Yes, but they suggest different things.