Yhwach
If you’re aware of his 999 year legend, cool. Instead of jumping to just 9 days, I worked down the line of time measurements from 9 months, 9 weeks, and then 9 days. Regardless of what year it is, this count lands on December 11th.
Or if you care about the rest you can end up on Dec 12 9:09:09am.
SO, what happens for you?