We generalize Interval Temporal Logic to include absolute time and are motivated to model Hybrid systems consisting of discrete, continuous, and heuristic components. The syntax and semantics of Timed Interval Temporal Logic (TITL) are presented, a visual notation, the extended Statecharts with combine TITL, guarded language, and time constraints in a unified manner, is introduced, and an example for the modelling of soaking pits in a steelworks is employed to illustrate how the formalism operates.