I work across timezones — and the fact that I’ll no longer be changing my clocks in the fall (living in BC), but my employees in EDT will be changing back to EST will be a problem.

With the un-until-now changing of the clocks twice a year, I’ve always been 3 hours behind my Eastern Time employees. This was easy to keep track of, and meant that our 1100 team meetings were at 1400 for them year round. Clocks changed here, clocks changed there, everything stayed in sync.

But now that we won’t be changing the clock here in BC in the fall, that 1100 meeting I book in PT is going to suddenly become a 1300 meeting for them. That wouldn’t be a problem if this was everyone’s only meeting, but as we’re part of a big multinational corporation they have other scheduled meetings with various teams already scheduled for 1300, so they’re going to be in conflict. I can fix them by bumping the meeting back an hour after the fall time change — but that means my BC based employees are going to have to attend a meeting over lunch (something I am very loathe to do — I know there are a lot of shitty managers out there, but for my staff I work very hard to ensure they get all the time off they are owed, they get time off when they want/need it, that everyone gets time off and flexibility for medical issues, and that I don’t ask them to work after hours or during lunch breaks unless agreed upon beforehand, and even then only for emergency situations).

In essence, if I keep that meeting at the same time in PT it’s going to change in ET, and that change is going to cascade as other meetings suddenly overlap. Or I change it here, and have a similar issue for my staff in BC. And that’s not even saying anything about my one team member in California (where they’re still changing time twice a year). Now — this isn’t the worst thing in the world to happen; we’ll work our way around it — but if everyone stopped doing twice-yearly time changes it would certainly make the situation easier. Twice a year I’m going to have a scheduling PITA.

Still worth it to no longer have to change all the clocks twice a year!

Yes, if all of them stopped changing. If some changed and some didn't, you'll have to be thinking which ones changed and which ones didn't.