One method for determining time related parameter values for a communications network occurs at network function (NF) repository function (NRF) including at least one processor. The method includes receiving, from a first NF, a service request message. The method further includes determining, using network information and/or NF information, a time related parameter value associated with the service request message. The method further includes generating and sending, to the first NF, a service response message indicating the time related parameter value.