I think you’re over complicating it. Lots of businesses already change hours throughout the year (and even the week!). Think of a restaurant or museum. Differen

I think you’re over complicating it. Lots of businesses already change hours throughout the year (and even the week!). Think of a restaurant or museum. Different hours every day. Or places in tourist destinations that have long summer hours and short winter hours. For most companies it wouldn’t be hard to say “no meetings before 9am from November to March”.