| CITY | LOCAL TIME | Difference | Coming up |
|---|---|---|---|
| London United Kingdom | 01:00Thu | +5h | Becomes +4h on 25 Oct |
| Berlin Germany | 02:00Thu | +6h | Becomes +5h on 25 Oct |
| Dubai UAE | 04:00Thu | +8h | Becomes +9h on 1 Nov |
| Tokyo Japan | 09:00Thu | +13h | Becomes +14h on 1 Nov |
| Sydney Australia | 10:00Thu | +14h | Becomes +15h on 4 Oct |
| New York United States | 20:00 | ±0h | |
| Los Angeles United States | 17:00 | −3h | Becomes −2h on 31 Oct |
Charleston, 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: 1 Nov. Charleston 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 Charleston lines up with 09:00–18:00 in New York. The time difference between Charleston and London is 5 hours. 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 Charleston lines up with 14:00–18:00 in London. The time difference between Charleston and Tokyo is 13 hours. 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, Havana, Washington DC. Keeping these offsets in mind makes it easier to schedule calls or travel to and from Charleston.
Charleston (United States) is home to roughly 155K people. Today brings about 11.9 hours of daylight: sunrise at 07:13, sunset at 19:06. Clocks move forward each spring and back each autumn: UTC−5 in winter, UTC−4 in summer. Next change: 1 Nov. It sits in the Northern Hemisphere, about 33° north of the equator. Traffic drives on the right.
Flag
United States
Capital
Washington DC
Continent
North America
Time Zone
EDT · America/New_York
Coordinates
32.78°N, 79.93°W
Currency
USD ($)
Calling Code
+1
Driving Side
Right
Hemisphere
Northern
Language
English
Measurement System
Imperial
Did You Know?
The first shots of the American Civil War were fired at Fort Sumter in Charleston harbour on 12 April 1861. The city also endured a magnitude 7.0 earthquake in 1886, unusual for the east coast, which damaged most of its buildings.
The clock: Charleston keeps Eastern Time. Its earthquake bolts — iron rods run through damaged houses to hold them together — are still visible on facades across the old city.
Charleston lies at 79.9°W. Its time zone, UTC−5, is built around the 75°W meridian. The 4.9° gap between them means the clock runs roughly 20 minutes ahead of the sun: solar noon arrives at about 12:20 rather than 12:00. Under daylight saving the clocks move 60 minutes forward, widening the gap to 80 minutes and pushing solar noon to 13:20.
The longest day of 2026 is 22 June, with 14h 19m of daylight. The shortest is 22 December, with 9h 59m. The swing between them is 4h 19m. At this latitude the seasons are visible in the clock, but never dramatic.
The earliest sunrise and the latest sunset do not land on the longest day. In Charleston the sun comes up earliest on 13 June at 06:11, while the latest sunset waits until 1 July at 20:32. The equation of time is what separates them: the Earth's elliptical orbit and axial tilt move solar noon back and forth by several minutes over the year.
The sky stays usably light for a while after the sun goes down. In Charleston that civil twilight runs about 25 minutes at the equinox.
Every figure in this section is computed from the city's own latitude, longitude and IANA time zone using NOAA solar algorithms (Spencer, 1971), accurate to about ±2 arcminutes below 65° latitude.
The official timezone for Charleston, United States is America/New_York with a current UTC offset of UTC−4.
Charleston has an estimated population of 155K and is located at coordinates 32.78°N, 79.93°W.
Charleston gets 14h 19m of daylight on its longest day and 9h 59m on its shortest, averaging 12h 11m a day across the year.
Solar noon in Charleston falls at about 12:20 on UTC−5 standard time, because the city sits 4.9° from the meridian its zone is built on.
Where the Civil War Started: The first shots of the American Civil War were fired at Fort Sumter in Charleston harbour on 12 April 1861.