Russia spans 11 time zones, more than any other country in the world. The zones range from Kaliningrad Time (UTC+2) in the west to Kamchatka Time (UTC+12) in the far east. Russia does not observe daylight saving time, so all zones maintain consistent times year-round.
Moscow Standard Time (MSK, UTC+3) is the reference for Russian time zones. Many regions are designated as "MSK+X" indicating hours ahead of Moscow. Moscow, St. Petersburg, and most of European Russia use MSK.
When it's midnight in Kaliningrad (western Russia), it's already 10 AM in Kamchatka (eastern Russia)—a 10-hour difference within the same country. Russia abolished DST in 2011, initially keeping permanent summer time, then switched to permanent winter time in 2014. The Trans-Siberian Railway spans nearly 10,000 km across these 11 time zones.