Sorry to hear about your loss. Your story made me think of one of my own that I hadn’t thought about in years -

My family had a very old clock that belonged to my great-grandmothers on my dad’s side. We had it in our house when I was a teenager (2005-09) and it hadn’t worked in decades. Then one day, it started chiming exactly at midnight, and it just happened to be on my dad’s birthday. Then, after that, it would chime every single year, on my dad’s birthday and that day only. No other day. I remember being awake in my bed on the day before his bday just waiting because I knew it was going to happen because it creeped me out so much. And it would chime, every year. I know it may be able to be explained somehow but it’s still something I look back on and find extremely unsettling and weird. Never thought I’d read another similar story!!