The Annual Starfleet Symposium was a yearly symposium held at Starfleet Headquarters in San Francisco.
In 2371, the senior staff of Deep Space 9 was scheduled to address the Symposium about the current Gamma Quadrant situation, but when Commander Benjamin Sisko, Lieutenant Jadzia Dax, and Doctor Julian Bashir beamed to San Francisco, they found themselves in the year 2024. (DS9: "Past Tense, Part I")