| CITY | LOCAL TIME | Difference | Coming up |
|---|---|---|---|
| London United Kingdom | 01:00Thu | +6h | Becomes +5h on 25 Oct |
| Berlin Germany | 02:00Thu | +7h | Becomes +6h on 25 Oct |
| Dubai UAE | 04:00Thu | +9h | Becomes +10h on 1 Nov |
| Tokyo Japan | 09:00Thu | +14h | Becomes +15h on 1 Nov |
| Sydney Australia | 10:00Thu | +15h | Becomes +16h on 4 Oct |
| New York United States | 20:00 | +1h | Becomes ±0h on 1 Nov |
| Los Angeles United States | 17:00 | −2h | Becomes −1h on 1 Nov |
St. Louis, United States runs on UTC−5. Clocks move forward each spring and back each autumn: UTC−6 in winter, UTC−5 in summer. Next change: 1 Nov. The time difference between St. Louis and New York is 1 hour. Standard 9-to-6 working hours overlap for about 8 hours a day with New York. A good time to connect: 09:00–17:00 in St. Louis lines up with 10:00–18:00 in New York. The time difference between St. Louis and London is 6 hours. Standard 9-to-6 working hours overlap for about 3 hours a day with London. A good time to connect: 09:00–12:00 in St. Louis lines up with 15:00–18:00 in London. The time difference between St. Louis and Tokyo is 14 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 Chicago, Dallas, Houston. Keeping these offsets in mind makes it easier to schedule calls or travel to and from St. Louis.
St. Louis (United States) is home to roughly 300K people. Today brings about 11.8 hours of daylight: sunrise at 06:55, sunset at 18:45. Clocks move forward each spring and back each autumn: UTC−6 in winter, UTC−5 in summer. Next change: 1 Nov. It sits in the Northern Hemisphere, about 39° north of the equator. Traffic drives on the right.
Flag
United States
Capital
Washington DC
Continent
North America
Time Zone
CDT · America/Chicago
Coordinates
38.63°N, 90.20°W
Currency
USD ($)
Calling Code
+1
Driving Side
Right
Hemisphere
Northern
Language
English
Measurement System
Imperial
Did You Know?
The Gateway Arch is 192 metres tall and 192 metres wide at the base — a weighted catenary curve, completed in 1965. Its two legs were built separately and had to meet within about a millimetre; crews sprayed the south leg with water to keep thermal expansion in check.
The clock: St. Louis keeps Central Time and marks the point where westward expansion was organised — the Lewis and Clark expedition set out from here in 1804.
St. Louis lies at 90.2°W. Its time zone, UTC−6, is built around the 90°W meridian. The two very nearly coincide: solar noon — the moment the sun is highest — falls at about 12:01, which is as close to true solar time as a zone this wide can get. Under daylight saving the clocks move 60 minutes forward, widening the gap to 61 minutes and pushing solar noon to 13:01.
The longest day of 2026 is 22 June, with 14h 52m of daylight. The shortest is 22 December, with 9h 28m. The swing between them is 5h 24m. This is the latitude band where the difference between summer and winter evenings is most obvious.
The earliest sunrise and the latest sunset do not land on the longest day. In St. Louis the sun comes up earliest on 15 June at 05:35, while the latest sunset waits until 29 June at 20:29. 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 St. Louis that civil twilight runs about 26 minutes at the equinox, stretching to 32 minutes at the solstice.
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 St. Louis, United States is America/Chicago with a current UTC offset of UTC−5.
St. Louis has an estimated population of 300K and is located at coordinates 38.63°N, 90.20°W.
St. Louis gets 14h 52m of daylight on its longest day and 9h 28m on its shortest, averaging 12h 12m a day across the year.
Solar noon in St. Louis falls at about 12:01 on UTC−6 standard time, because the city sits 0.2° from the meridian its zone is built on.
A Monument as Tall as It Is Wide: The Gateway Arch is 192 metres tall and 192 metres wide at the base — a weighted catenary curve, completed in 1965.