Space Date, abbreviated as S.D. or simply SD, is the main method of year count in the Star Ocean universe. Every game in the series has taken place in the SD calendar, and it was adopted in the year mankind developed ways of traveling at a speed faster-than-light. The titles of the Star Ocean series take place in the following eras: * Star Ocean: Fantastic Space Odyssey/First Departure - SD 346/46 * Star Ocean: The Second Story/Second Evolution - SD 366 * Star Ocean: Blue Sphere - SD 368 * Star Ocean: Till the End of Time - SD 772 * Star Ocean: The Last Hope - SD 10