I ski a lot and wear headphones for music and to take any emergency calls. I use siri to ask “What time is it?” 50:50 whether or not it works. This has been my experience for as long as siri has existed and I have kept up to date on hw and sw. I only stick with it because pulling the phone out in the cold is even more annoying than having to repeat the long press and myself. Don’t get me started on a question that simple needing an internet connection… because I’m excluding that error case.