To the 9's

Remember 12:34:56 on the 07/08/09?
Then you’ll love this…

09:09:09 on 09/09/09

And get this:

9+9+9+9+9+9 = 54
5+4 = 9
(This works for any multiple of 9 I’m told)

September 9 is the 252nd day of the year
2+5+2 = 9

September
There are 9 letters in ‘September’

Anything else you can think of?