Method and system for providing greenwich mean time in mobile broadcasting service

A GMT(Greenwich Mean Time) providing method in the mobile broadcasting service and a system thereof are provided to allow a mobile terminal to obtain the GMT even when the transmission environment of a broadcast network is unstable. When the mobile broadcasting service is initiated, a mobile terminal receives and stores a GMT access address information through the ESG(Electronic Service Guide) bootstrap session. By using the stored GMT access address information, the mobile terminal connects to a communication network to request the GMT(203). According to the request of the mobile terminal, the communication network transmits the GMT to the mobile terminal. The mobile terminal receives and sets up the GMT(205).