Here’s What Happens When Your Phone’s Clock Changes Itself on Nov. 2

“Spring ahead; fall back.” That’s the mnemonic we all use to remember how much pain is coming when the time changes. It’s fall, the less painful one, and since the time on everyone’s smartphone changes itself now, your alarm will feel like it’s going off an hour late. Pro: You might get more sleep. Con: Your cat won’t care what the clock says, and will just wake you up to get fed at 7:00 a.m. instead of 8:00 a.m.

But if you’ve never given the time change more than a moment’s…