I think people are right that only Horizon has UHT but lots of us brands do have ultra-pasteurized/UP milk in cartons, and if you have fridge space, those can stay in the fridge for 90 days (sometimes more). I have a UP stash with expiration date into late April-early May.
Yeah, commonly found. To be honest I have some UHT stashed as well. Not that I expect anything to go wrong with electricity, but I’m doing my best to #StayTheFHome.