Under the Trade Overview" in the "Find Location" window. I do see the "last update" where it lists the station for a given item. But personally I find a data age [such as in navigation /market places easier and faster] Right now I have to keep selecting the next "trade market" in the overview to check the last update in the destination window and then do the math to figure out the data age. I'm assuming the data age times are also displayed on a 12 hour clock since that is how my clock is set. Does that make sense?