I know you’ve been waiting with bated breath all holiday season to find out which of the made-up online shopping holidays would be the winner—Cyber Monday for the first time ever? Green Monday again? Brown Monday? Purplish-Blue-Like-a-Bruise Monday?

Sadly, none of the above. Nope, it was some no name: Tuesday, December 15. Coming from behind, that all-but-forgotten day of the week topped the online revenue charts for the first time with $913M in sales. That’s right, nearly one billion dollars in revenue online in one day—and yes, that would be the record for the most online spending in a single day, ever.

*Corresponding days based on corresponding shopping days (November 2 thru December 21, 2008)

As you can see, overall, spending is up just 4% over last year. The peak day is up 6% over last year’s peak, Green Monday (December 15).

Wait a minute. December 15, 2008; December 15, 2009. Coincidence? I think not.

Of course, there’s always room for the last minute shoppers to set another record. Polls indicate that, as of Sunday, the average shopper has 38% of their Christmas shopping left, with 17% who haven’t even started yet. That’s one in six Christmas shoppers who left it to the last four days before Christmas to even get started. (via)

Have you finished your Christmas shopping? Did you win big on December 15 again this year, or did you help drive up that total spending?