Punctuality of DB-Swiss trip
Many long distance routings span several countries.
I boarded a DB (equipment) train in Zurich and got off in Chur the END of that route (per route info sheet): this train began at 00:30 in Hamburg-Altona, it departed Zurich on schedule at 10:17 and arrived in Chur 1 MINUTE late.
This train (essentially) covers Germany N-S, and Switzerland NW-NE and arrived ONLY 1 minute late.