Exploring the timing capabilities of the High Granularity Calorimeter

The CMS High Granularity Calorimeter (HGCAL) will replace the present endcap Electromagnetic (ECAL) and Hadron calorimeters (HCAL) for the High Luminosity LHC (HL-LHC). One of the unique features of the HGCAL is its ability to measure the time of fight of showers precisely. We will present results on the timing performance of the HGCAL with respect to electromagnetic and hadronic showers. We will also explore the timing performance of the detector in 140 and 200 pile-up scenarios.