There are two train stations in Dachau: Bahnhof - regional trains to Munich, Petersahsuen and Ingolstadt and Stadtbahnhof - only regional train SA2 - Dachau Altomünster.
The S-Bahn (regional train) S2 Munich - Dachau - Petershausen departs from Dachau to Munich every 20 minutes (from Dachau to Petershausen every 40 minutes). The trip to Munich takes approx. 20 minutes. The S2A branches off the regional train at Dachau train station to Altomünster via Markt Indersdorf (usually every hour). For current train schedule please trefer to:
MVV Muenchen