OnTrac does not typically offer the option to schedule specific delivery times for packages. Instead, they provide delivery services based on their standard shipping methods and delivery windows. Packages are generally delivered during business hours but can vary based on the destination and other logistical factors. Customers can track their shipments online to get updates on the estimated delivery time, which can help in planning for package arrival. It is advisable to check the current web page for the most accurate and up-to-date information regarding OnTrac's delivery options and any available features that may assist in managing package deliveries. While flexibility in choosing specific delivery times may be limited, understanding the shipping status can provide additional clarity on when to expect a package.