Telefonica Network operations can require time-based, scheduled changes in nodes, links, adjacencies, etc. All those changes can alter the connectivity in the network in a predictable manner, which is known as Time-Variant Routing (TVR). Existing IETF solutions like ALTO can assist, as an off-path mechanism, on the exposure of such predicted changes to both internal and external applications then anticipating the occurrence of routing changes. This document describes how ALTO helps in that purpose.