Unified Temporal Dynamics: Emergence of Gravity from a Field Theory of Time

The Unified Temporal Dynamics (UTD) reformulates gravitation in a field-theoretic framework, where the spatially varying clock rate of physical processes, rather than spacetime geometry, is posited as fundamental. The starting point is the operational fact that energy density influences the local clock rate. UTD interprets this causally and describes gravitation as the emergent dynamics of a symmetric time-structure tensor field Θ_μν on a fixed Minkowski background. Matter and radiation couple to an effective metric gₑff_μνΘ derived from Θ_μν, or specifically to the time-flow factor F (x) = dτ/dt. In the weak-field regime, we obtain a ≈ −c² ∇ ln F, while the post-Newtonian limit reproduces classical tests. The finite capacity of the time field physically enforces an energy-density-dependent coupling S (ρ). This interpolates between GR behavior in the low-energy regime and a controlled decoupling at high densities. Thus, singularities are dynamically avoided, opening a concrete avenue for addressing the information paradox of compact objects. The global reference state separates UV vacuum contributions from the gravitationally active IR bulk, thereby providing a mechanism that can mitigate the vacuum energy catastrophe without ad hoc fine-tuning. On galactic scales, MOND-like phenomenology emerges. The scale a₀ is not set freely but is coupled to cosmic expansion via global boundary calibration, such that the "dark" sector appears as an emergent limit. Cosmologically, an inflation-like early phase arises without an inflaton field, driven by boundary driving and saturation dynamics, which can favor early structure formation and is thus particularly relevant in light of JWST findings regarding early massive galaxies. For compact objects, UTD yields stable core–halo configurations with testable ringdown signatures (including echo timing) and thus clear paths for falsification.