Clock of Regimes for Regime-Switching Fragility Analysis // Implements the Clock of Regimes (KRONX) framework for regime- switching fragility analysis of financial time series. The package fits Gaussian and Student-t Hidden Markov Models (HMMs) to return data, constructs a hazard-adjusted transition operator Q, derives the associated generator K = Q - I, and computes the fundamental matrix N = -K inverse to characterize expected residence times under structural fragility.