I disagree with the PP that the actual day is not important. Its more important *to me* than the party. I have found that especially with the 1st b-day, while its not a big deal to the child, it IS a big deal to me -- thinking back to the birth and all, what the past year has been like, etc. Like I said, *I* would be distracted on the day, regardless of when the party was.
JMHO.