wrong date

I wrote down the wrong date for my upcoming dental appointment, for a routine cleaning. Fortunately, I won't need to reschedule, because the actual appointment is for next week, rather than today

Also fortunately, I discovered this before I left the house this afternoon. I just got an automated email reminding me of my upcoming appointment. I thought "that isn't much notice," and then saw that yes it is, they sent the reminder seven days in advance, for an appointment on the afternoon of the 21st. Also fortunately, I have nothing else scheduled for next Wednesday.

I have updated my calendar with the correct date and time, and am now going to listen to the message from my occupational therapist, even though I think I know what it says.