I’ve been working on a analog clock that can easily change the hour during daylight savings time. The clock face can rotate one hour ahead or one hour back. I’m using a flexure mechanism based on a design by AmyMakesStuff. The click is very satisfying.
Unfortunately, it falls back 55 minutes and springs forward 65 minutes. I guess this is why I haven’t seen this design before. I recently talked about the project (among other things) with Zach Dunham on the Bantam Tools Livestream.