I have to bake a 12 x 18 cake which will be in a Fat Daddio pan. since this is the first time using these pans does anyone have baking times for this size pan?

I am not an expert by any means but I used the Wilton baking times and batter volume as a guide when I did a 12"x18". http://www.wilton.com/cakes/making-cakes/baking-party-cake-2-inch-pans.cfm I used bake even strips and 2 flower nails so it actually took a bit longer probably closer to 1hour in total. I baked till it tested done.