@zigg Oh we opted out in November. But instead of shifting the times in our schedule (which hasn't worked in the past), we set all our clocks to UTC and converted our schedule to that. A nice side-effect is that we avoid jet lag when crossing one timezone, and we never have to adjust a clock even then. It is more work communicating with the locals, but working with other time zones (which we do a lot) is easier.
@zigg I suspect that when you oppositely shift your clocks and schedule, even though technically you're doing everything at the same time as before, you still "know" that it's nominally a different time and it has a subconscious effect. UTC avoids this (though if your local timezone were closer to UTC you'd probably get something similar when switching to it).