mail delivered on saturday is a standard service provided by USPS, which delivers mail and packages on Saturdays as part of its regular operations. Most USPS services, including Priority Mail, First Class Mail, and Parcel Select, are available on Saturdays, ensuring that customers can receive deliveries throughout the week. Some post offices may have different operating hours on Saturdays, so it’s advisable to check with the local USPS branch for details. Saturday mail delivery ensures that those who rely on USPS for their shipments don’t have to wait for Monday for their packages to arrive.