Magento Commerce, 2.2.x
Pending Payment Order Lifetime

The lifetime of orders with pending payments is determined by the Orders Cron Settings configuration. The default value is set to 480 minutes, which is eight hours.

To set the lifetime of orders with pending payments:

1. On the Admin sidebar, tap Stores. Then under Settings, choose Configuration.
2. In the panel on the left under Sales, choose Sales.
3. Expand the Orders Cron Settings section.
4. In the Pending Payment Order Lifetime (minutes) field, enter the number of minutes before a pending payment expires.
5. When complete, tap Save Config.