When we were forewarned about this rule last Summer my salary was bumped (pretty nicely) to circumvent the rule. I have a position which requires A LOT of extra hours during two months of the year and my coming and going in December can be more flexible. My employer decided that this was easier than making me clock in (and I could have two more projects).
I wonder how this also affects travel. It’s not uncommon for us to have “drive in days” which are in other locations and have a 2-3 hour drive. We often leave for these things in the 7-7:30 range and sometimes aren’t back until 6:30-7:00 at night. It’s been as late as 8:30. Those interactions are a huge asset to our organization. I bet they will have to be curtailed in some way.
My son has a job where a lot of difficult to predict things occur. He often works 50+ hours a week. He receives an unusually large amount of non-monetary compensation so his salary is relatively low. No one knows how the work will get done with this new rule.