It does everything your clock app does, plus a few things like starting a timer in the past.

Google has updated the Clock app to make it easier to create a custom alarm. You can now record an alarm right from the app. Previously, you would need to record something and then sideload it. So far ...

Pixel Clock looks and feels like an official Google Pixel product, but it's a third-party clock app that's far smarter than the default.