From the Library - Events - Day of Battle Steel description - Every third Saturday of each month, from 19:00 Server Time to 07:00 Server Time of the following Tuesday, the Day of Battle Steel is celebrated
In the Game, Battle Steel just started and lasts 1 Day 11 Hours. That is definitely not as long as the description states.

Personally, I would love to see the in game quest match the description, an extra day of Battle Steel would make me a very happy Kat.