Welcome to the Airtable community!
Using rollups as suggested by Williams_Innovations will only work if there are exactly two orders. If there are multiple orders, you will not be able to see the interval between the orders.
The screenshot is not showing up in the forums, but I’m guessing that you have an [Orders] table where each order is a record.
You can have a same-table linked record field to link to the previous record. Then use a rollup field to get the date of the previous order. Finally, have a formula field calculate the date range using
DATETIME_DIFF. (It is possible to do this all in a rollup field, but the formula gets complex because of how dates are handled in rollup fields.)
If you have a [Customers] table, it is possible to automate the creation of the link to the previous record. The automation would require either access to the beta for conditional logic in automations, or a automation script.