India is set to shift from GPS-based time determination to using its own NavIC system for precise time dissemination. The initiative aims to ensure ‘one nation, one time’ by relying on atomic clocks across regional centres, reducing dependence on foreign systems and enhancing national security.India is set to shift from GPS-based time determination to using its own NavIC system for precise time dissemination. The initiative aims to ensure ‘one nation, one time’ by relying on atomic clocks across regional centres, reducing dependence on foreign systems and enhancing national security.