It would be a good day to celebrate a 21st Birthday.......It's the 21st day of the 21st year of the 21st century!
22nd year, surely?
Hmmmm! accurate but pedantic~ perhaps?
But it has always been that the '0' year is counted as part of the preceding decade......does any year counting system start or show year 0(zero). Was there such a year between 1BC and 1AD???
Well, I'm 56 so I'm in my 57th year. A child isn't in their 1st year after their 1st birthday.
I'm not being pedantic, the OP is just a year late.![]()

yesterday would of been more appropriate.....I'll wait until 21:21 this evening.....
Yes....I messed that up [emoji38]yesterday would of been more appropriate.....