The Moscow Metro officially opens its doors to passengers at 5:30 AM every morning, regardless of whether it is a weekday or weekend. This early start time makes it one of the most reliable transit systems for early commuters and travelers. While the entrances open at 5:30, the first trains usually begin their runs from the terminal stations slightly earlier, reaching intermediate stations shortly after the doors open. The system remains extremely active throughout the day, with trains arriving as frequently as every 90 seconds during rush hour. The metro then closes at 1:00 AM, giving the maintenance crews only a short window to clean and repair the "underground palaces." For 2026 visitors, the "Troika" card remains the best way to pay, and the 5:30 AM start ensures you can reach major train stations or airports for even the earliest departures.