It is a 2-dimensional infographic tool which will help you to find out the best-selling days and hour. The horizonal axis represents weekday and vertical axis includes hours in the weekday. You can simply glance the heatmap given here that Wednesday at 9 AM is one of the best time slots to focus sales through increased advertisement and offers. You also have business intelligence information about best-selling/low selling/fast moving products in different categories to boost eCommerce business. In addition to sales and product details, you can also get information about new customers acquired in the weekday-hour time slot.