Quick Explanation
Central Standard Time (CST) is 1 hour behind Eastern Standard Time (EST). So 4 AM CST = 5 AM EST.
EST = CST + 1 Hour
CST to EST Converter Tool
Convert any Central Standard Time to Eastern Standard Time.
Central Time (CST)
Eastern Time (EST)
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About This Conversion
When it's 4:00 AM in cities like Chicago, Dallas, Houston, and Mexico City (Central Time), it's 5:00 AM in New York, Miami, Atlanta, and Toronto (Eastern Time). The Central Standard Time zone (UTC-6) is always exactly 1 hour behind Eastern Standard Time (UTC-5). This 1-hour difference remains constant year-round, even when both zones switch to daylight saving time (CDT to EDT) between March and November.