So that trick of Garfield actually works?
(Fun fact, Garfield and I share our birthdays).

what trick of Garfield? you could have explained the trick of Garfield if I were you

Making everybody younger by just changing the year on the calendar.

oh..right, I should have known, it could have been funnier with steve being younger at the last two panels

Maybe... I'm afraid I don't know Steve...
I do know Garfield though (fun fact, Garfield's birthday is the same as mine).