I have something similar with 9/11.My dad and I can both clearly remember having a conversation with my grandfather about the events of 9/11. We both remember the conversation exactly the same way. Particularly relevant as my aunt and cousin were in New York at the time.
My grandfather died on the 9th of September, we can’t explain it.
I was only 9 but I distinctly remember waking up on holiday, in a caravan and mum watching it on TV on the news.
But we went on holiday the week before.
We went home on Saturday the 8th and 9/11 was the Tuesday after.
I haee such a clear vivid memory of watching it in the caravan though!