Baltimore is 1 hour ahead of Chicago. Baltimore uses Eastern Time (EST/EDT) while Chicago uses Central Time (CST/CDT). When it's 10:00 AM in Baltimore, it's 9:00 AM in Chicago.
Both cities observe daylight saving time on the same schedule, so the 1-hour difference remains constant year-round.
Best calling time: 9:00 AM - 5:00 PM Baltimore time. This corresponds to 8:00 AM - 4:00 PM in Chicago, providing full business hour overlap between the two cities.
Baltimore and Chicago are both major metropolitan areas with strong industries in healthcare, finance, and transportation. Direct flights between the cities take about 2 hours.