Well it depends on what you consider to be the actual day. The 18th is when he asked. The 22nd is when he found someone to pay for pizza. I consider the day of the transaction on the 22nd to be the day.

Ah-ha. Got it. 🤙 I had it in my calendar for the 22nd too. But I'm relatively new to the #Bitcoin community. I was thinking it was some kind of Mandela effect. I didn't even hear about Bitcoin until late 2010 anyway.