

Do you let your network set the time or did you do it manually? Could be a hint that you’re off by a minute or so (considering you’ve checked all the other reasonable things already).
Any other apps installed that may want to set alarms? Maybe a sideload? Calendar app you’ve tried and not uninstalled?
I think it’s because these are people with the power to do more than thoughts and prayers. But they just stick with that while also taking health care off veterans and giving tax breaks to the rich.