The frequency of JR (Japan Railways) trains depends entirely on the type of line and the time of day, but they are world-renowned for their punctuality and "high-density" scheduling. In Tokyo, the Yamanote Line (the city's circular loop) runs every 2 to 3 minutes during peak hours and every 4 to 5 minutes during the day. For the Shinkansen (Bullet Train), the "Nozomi" service on the Tokaido line between Tokyo and Osaka can run as frequently as every 10 minutes. In rural areas, however, frequency drops significantly; some local lines might only have one train every hour or even every few hours. In 2026, JR has further optimized its digital "Live Tracking" via the JR West and JR East apps, allowing passengers to see exactly where their train is. A major rule of thumb in Japan: never run for a JR train in a city; because they run so frequently, the next one is almost always just a few minutes behind.