Share this: Facebook Twitter LinkedIn SFMTA.com/16455 23 to S.F. Zoo 23 min Predictions valid as of 4:43:17 AM 5/26/2025 min Arriving Prediction Unavailable Stop closed — no service Predictions valid as of Predictions unavailable for any route as of Route & Arrival Details 23 Monterey 6 a.m. to 10 p.m. daily Destination Predicted Arrivals S.F. Zoo 23 min Live Map