The molecular hydrogen ion H₃⁺ (3 protons, 2 electrons) is analyzed within the framework of chronal dynamics. It is shown that: The proton–electron pair in H₃⁺ is a natural τ-oscillator (τ = ħ/E). The equilateral triangle geometry (d = 1.25 ± 0.2 Å) creates a closed circulation of the τ-field. The magnetic field of H₃⁺ is interpreted as B ≠ 0, H = 0 — circulation from electron spins (M), without external currents. The force holding three protons together is calculated via the τ-field and scales to ∼4.65 N at nuclear distances. The number π appears in the triangle geometry (sum of angles = 180°) and in the circulation of τ around a closed loop. The THz frequency (1–10 THz) corresponds to the natural oscillation frequency of electrons between protons.