Bs Physics at LEP, SLD, and CDF: Delta m_s and Delta Gamma_s

The current status of the experimental knowledge of $\Bs$ meson physics is reviewed. Results from LEP and CDF on the width difference $\dgs$ are presented, the corresponding average is found to be in good agreement with the present theoretical estimation. The $\Bs$ oscillations have not yet been resolved, despite the progress recently achieved by SLD and ALEPH. The world combination, including results from the LEP experiments, SLD and CDF, is presented, together with the expected and observed lower limit on the $\Bs$ oscillation frequency. A tantalizing hint of an oscillation is observed around $\dms\sim17 \psin$, near future results could increase the significance of this hint.