ShipStation's Age column comes in handy when sorting your Awaiting Shipment orders for fulfillment. You can sort by ascending order to display the newest orders first or descending value to view the oldest orders first
The order age represents a different value depending on the status of the order.
If your orders are in Awaiting Shipment, then the order age is the difference between the Paid Date & Time and the Current Date &Time. For example, if the paid date is 9/16/2018 10 PM, and the current time is 9/17/2018 10 AM, then the Order Age is 12h.
Once an order is Shipped the order age is a static value based on the difference between the Ship Date & Time and Date Paid & Time. For example, if an order imported with a paid date of 9/17/2018 10 AM and it was shipped on 9/17/2018 at 12 PM, the order age would be 2h.