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We perform detailed calculations of the electronic structure of theOs$^{16+}$ ion and demonstrate that it has several metastable states which canbe used for very accurate optical clocks. The clocks are highly sensitive tomanifestations of the physics beyond standard model, such as time variation ofthe fine structure constant $\alpha$, interaction with scalar and pseudoscalar(axion) dark matter fields, local Lorentz invariance and local positioninvariance violations, and interaction of atomic electrons with nucleusmediated by new boson. The latter can be studied by analysing King plot forisotope shifts and its possible non-linearities since Os has 5 stable isotopeswith zero nuclear spin.  Similar calculations for the Ir$^{17+}$ ion spectra demonstrate very goodagreement between theory and experiment. This helps to validate the method ofthe calculations and demonstrate that both ions are excellent candidates forthe search of new physics.

The Os$^{16+}$ and Ir$^{17+}$ ions as candidates for accurate optical clock sensitive to physics beyond standard model