All the way down to the day and hour.
So when are they thinking the world will meet the royal baby?
Based on their most recent odds, they wager we'll be introduced to Middleton's bundle of joy on July 3 at noon. Hurry, mark your calendars!
As far as baby names, Elizabeth and Diana are still favorites with 5-1 odds each, followed by Victoria and Frances with 7-1 and 8-1 odds, respectively.
And those might be very useful, considering the Duchess of Cambridge supposedly hinted at having a girl (but you can decide for yourselves if she actually gave it away).
—Reporting by Baker Machado