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Introductory Remarks.- I. Natural Philosophy of Time.- Theory and Experience of Time: Philosophical Aspects.- Whitehead´s Theory of Perception.- Delayed-Choice Experiments and the Concept of Time in Quantum Mechanics.- The Deconstruction of Time and the Emergence of Temporality.- Self-reference and Time According to Spencer-Brown.- Time and Information.- Time - Empirical Mathematics - Quantum Theory.- II. Cognition and Time.- The Brain´s Way to Create "Nowness".- Temporal Integration of the Brain as Studied with the Metronome Paradigm.- Neurophysiological Relevance of Time.- Sensations of Temporality: Models and Metaphors from Acoustic Perception.- Cognitive Aspects of the Representation of Time.- III. Relativity and Gravity.- Concepts of Time in Classical Physics.- Nows Are All We Need.- The Quantum Gauge Principle.- Does Time Exist at the Most Fundamental Level?.- IV. Non-Relativistic Quantum Theory.- The Representation of Facts in Physical Theories.- Individual Complex Quantum Objects and Dynamics of Decompositions.- Decoherence and Quantum-Classical Correspondence in Chaotic Systems.- Spectral Decomposition and Extended Formulation of Unstable Dynamical Systems.- Dynamical Entropy in Dynamical Systems.- Nonlocality in Quantum Dynamics.- Process and Time.

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