When you click this URL, you may see a sale that has not started yet. For example, right now one of the lines starts: "offer Y Y 1 610 ...". The 610 is the number of seconds until the sale activates. I.e., this sale will start 2:30PM Central time. The third large number is the number of seconds until the sale expires. This number is consistently 10800 greater than the first number, meaning a 6-hour sale.