[HMM V TOURNAMENT OFF] "company-based"

Funny: The 8th tournament starts on January XX and ends on January XX (inclusive). The result will be announced on January 20, 2008.

XX represents Roman numerals; for example, this means 20.
So, does that mean we start on the 20th and finish on the 20th, managing everything in a single day? Or is this just a joke, or did you make a mistake?