I'm home resting today (Aren't I sensible? No. My doctor told me if I didn't behave myself, London might not be possible next week. So I'm not inherently sensible.) and decided that some mac and cheese would be a good idea.
Got out a box of elbow macaroni, boiled some water, added some of the elbows...and then started to scour the now-opened box for the cooking time. It was nowhere to be found, but other bits of advertising were there, and a recipe for something or other.
Look at recipe. It says, "Follow directions for cooking elbow macaroni. See bottom of box."
There, on the bottom flap, was a pictogram about 1.5" square with four little pictures in it. No words. And if you looked very, very carefully, you saw a little, tiny clock with the number "7" next to it.
Be sure to hold the now-opened box top closed tightly (I did) before flipping box.