This white paper proposes a time-first unified-field framework in which time is treated as irreducible and primary. Geometry emerges from temporal ordering and conversion dynamics; spacetime is a composite bookkeeping limit of conjoined time and induced geometry. The model is formalised through axioms and postulates and produces falsifiable predictions, including bounded temporal-lattice collapse in black holes (rather than singularities), necessary outflow channels (jets) due to temporal non-erasure, conjugate matter/antimatter projections, and cosmological signatures in CMB anisotropy and structure formation.