06/17/2345 to be precise.
Ha! You’re right. I did that quickly before going for a walk at lunch.
Oops!
My apologies.
That is what I have, and the internet backs it up (and indeed it was the answer in the Only Connect show that is ultimately responsible for this ill-fated foray into starting threads on the SDMB, which I will try to remember to not foray into again).
June 17th 2345 is going to be party time in puzzle fans of the future’s houses. Whether it is distinguishable from other days at their houses remains to be seen. If it is anything like today, then perhaps not.