V2 and V3 both provide shipping time estimates for USPS and Fed Ex, however, they do not provide this for UPS Shipments. This is attainable information, as Shopify provides this info on UPS shipments, so i know its possible, and ShipStation is retrieving it from USPS and FedEx, and i know UPS is willing to provide it because they provide it to Shopify, so it seems that ShipStation could simply ask for this info to be provided the same way they do Fed Ex and USPS .