This is what you say when you accidentally greet someone with buenos días after 12 PM (aka buenas tardes time).
It means something like:
👉 Morning... oh, it's afternoon already!
It’s a fun, self-correcting chunk that’s particularly popular with Boomers and Gen Xers.
🌪️ When to whip it out
When you realize you just said buenos días and it’s already the afternoon: