United States · EDT
Mon, 14 Sept 2026
Timezone Guide
Chattanooga, United States runs on UTC−4. Clocks move forward each spring and back each autumn: UTC−5 in winter, UTC−4 in summer. Next change: 2 Nov. Chattanooga and New York currently share the same clock. Standard 9-to-6 working hours overlap for about 9 hours a day with New York. A good time to connect: 09:00–18:00 in Chattanooga lines up with 09:00–18:00 in New York. There is a 5-hour difference between Chattanooga and London. Standard 9-to-6 working hours overlap for about 4 hours a day with London. A good time to connect: 09:00–13:00 in Chattanooga lines up with 14:00–18:00 in London. There is a 13-hour difference between Chattanooga and Tokyo. Standard working hours don't overlap at all with Tokyo, so meetings need an early or late slot on one side. This timezone is also shared with cities such as Toronto, Caracas, Havana. Keeping these offsets in mind makes it easier to schedule calls or travel to and from Chattanooga.
Practical Info
Chattanooga (United States) is home to roughly 185K people. Today brings about 14.5 hours of daylight: sunrise at 06:30, sunset at 21:00. Clocks move forward each spring and back each autumn: UTC−5 in winter, UTC−4 in summer. Next change: 2 Nov. It sits in the Northern Hemisphere, about 35° north of the equator. Traffic drives on the right.
Flag
United States
Capital
Washington, D.C.
Continent
North America
Time Zone
EDT · America/New_York
Coordinates
35.05°N, 85.31°W
Currency
USD ($)
Calling Code
+1
Driving Side
Right
Hemisphere
Northern
Language
English
Measurement System
Imperial
Did You Know?
Chattanooga's city-owned utility built a fibre network offering 1 Gbps to every household in 2010, the first US city to do so, using a federal smart-grid grant. It later upgraded to 10 Gbps.
The clock: Chattanooga keeps Eastern Time. Lookout Mountain above it has a claim, disputed and much advertised, that seven states are visible from the top.
Annual Daylight
Working Hours
2h overlap