overnight parcel delivery refers to a shipping service that guarantees delivery of a parcel the next business day, typically within 24 hours. Many major carriers, such as USPS, UPS, and FedEx, offer overnight delivery options, ensuring fast and reliable shipping for time-sensitive items. Overnight shipping is ideal for urgent shipments, including documents, medical supplies, and perishable goods. The cost of overnight delivery can vary based on the size, weight, and destination of the package. It’s a premium service that offers speed and reliability for urgent deliveries.