Chattanooga, Tennessee, United States
Current time in United States
Time zone: CDT (UTC/GMT -05:00) — America/Chicago
| Local Clock Offset: Yesterday, -5 H |
| Time zone: (UTC/GMT -05:00) America/Chicago |
Current Time in other Cities of United States
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Time zone in Chattanooga
Chattanooga runs on CDT. That places it 5 hours behind UTC (UTC-05:00); in a calendar, server config or booking form, select America/Chicago.
Chattanooga observes daylight saving. The next change lands on Sunday, 01 November 2026, when 1 hour is added or removed and the abbreviation becomes CST.
Bear in mind United States spans 10 zones across the 419 cities we cover — checking a second city in the same country is often necessary.
Time difference between Chattanooga and other cities
Live differences from Chattanooga, calculated from each zone's rules as they stand today rather than a fixed table.
| New York | UTC-04:00 | Chattanooga is 1 hour behind |
| Los Angeles | UTC-07:00 | Chattanooga is 2 hours ahead |
| London | UTC+01:00 | Chattanooga is 6 hours behind |
| Paris | UTC+02:00 | Chattanooga is 7 hours behind |
| Dubai | UTC+04:00 | Chattanooga is 9 hours behind |
| Mumbai | UTC+05:30 | Chattanooga is 10 hours 30 minutes behind |
| Shanghai | UTC+08:00 | Chattanooga is 13 hours behind |
| Tokyo | UTC+09:00 | Chattanooga is 14 hours behind |
| Sydney | UTC+10:00 | Chattanooga is 15 hours behind |
| Sao Paulo | UTC-03:00 | Chattanooga is 2 hours behind |
Working hours that match Chattanooga
Overlap of a normal working day, shown in Chattanooga time — outside these windows one side is off the clock.
| New York | 09:00–16:00 in Chattanooga | 7 hours overlap |
| Los Angeles | 11:00–17:00 in Chattanooga | 6 hours overlap |
| Sao Paulo | 09:00–15:00 in Chattanooga | 6 hours overlap |
| London | 09:00–11:00 in Chattanooga | 2 hours overlap |
No shared working window exists with Dubai, Mumbai, Shanghai or Tokyo, so those calls have to sit outside somebody's normal hours.
Sharing Chattanooga's time zone
No difference at all from Chattanooga: the cities below share the America/Chicago zone.
Chicago San Antonio Fort Worth Oklahoma City New South Memphis Milwaukee Omaha Kansas City
Popular cities
| New York, United States |
| London, United Kingdom |
| Paris, France |
| Tokyo, Japan |
| Beijing, China |
| Sydney, Australia |
| Berlin, Germany |
| Moscow, Russia |
| Dubai, United Arab Emirates |
| Singapore, Singapore |
| Los Angeles, United States |
| Chicago, United States |
| Toronto, Canada |
| Mexico City, Mexico |
| São Paulo, Brazil |
| Mumbai, India |
| Hong Kong, Hong Kong |
| Seoul, South Korea |
| Istanbul, Turkey |
| Cairo, Egypt |
| Lagos, Nigeria |
| Buenos Aires, Argentina |
| Madrid, Spain |
| Rome, Italy |