Wireless communications systems and methods related to channel occupancy time (COT) sharing among sidelink user equipment devices (UEs) are provided. A first user equipment (UE) determines a channel occupancy time (COT) in a shared radio frequency band for communicating a sidelink with a second UE. The first UE transmits, to the second UE, the sidelink using first resources in the COT, the sidelink comprising COT sharing information for second resources in the COT.