It's My Daughters 24th Birthday

I just called my daughter to wish her a happy birthday. She was born at 8:05 am 24 years ago. I've been looking at the clock for over an hour waiting for 8:05 to arrive. Minutes are going by like hours and I couldn't wait any longer so I called her a few minutes ago. She answers and the first thing that comes out of her mouth is - "It's not 8:05"

So I hung up.

(why does this amuse me so) ? :) ?