Techniques for providing a secure clock source in a communication network are disclosed. For example, a method comprises participating in a bi-directional authentication with a network entity in a communication network, sending a clock service request message to the network entity, receiving a clock service accept message in response to the clock service request message when the apparatus is eligible to use a clock service, and receiving one or more secure clock signals from the network entity. Another method comprises participating in a bi-directional authentication with a requesting device in a communication network, receiving a clock service request message from the requesting device, verifying the eligibility of the requesting device to request a clock service, and sending one or more secure clock signals to the requesting device in response to successfully verifying the requesting device.