CheonanSouth Korea
Current time in Cheonan, South Korea
Tuesday, 1 September 2026
Korean Standard TimeUTC+09:00
⛶ Full-screen clockCheonan time at a glance
- Country
- South Korea
- Location
- City in Chungcheongnam-do
- Time zone
Asia/Seoul- UTC offset now
UTC+09:00- Current zone label
- GMT+9
- Next clock change
- No upcoming change available
Weather now
Weather in Cheonan
Conditions near Cheonan and a 3-day forecast. Local conditions can differ across large urban areas, mountains and coastlines.
Patchy rain nearby
- Feels like
- 28°C
- Humidity
- 86%
- Wind
- 7.6 km/h NE
- Recent precipitation
- 0 mm
3-day forecast
- Light rain shower21°C to 25°C89% chance of precipitationWind up to 7.2 km/h
- Overcast21°C to 28°C85% chance of precipitationWind up to 6.1 km/h
- Overcast21°C to 28°C81% chance of precipitationWind up to 10.1 km/h
Forecast valid from 16:00 local time. Updated 2026-09-01T07:15:23.816Z; refresh due by 2026-09-01T07:30:23.816Z.
Time-zone identity for Cheonan
- IANA zone
Asia/Seoul- UTC offset now
- UTC+09:00
- Current zone label
- GMT+9
- Clock-change status
- No UTC offset change was found in the next 370 days.
Cheonan is currently 9 hours ahead of UTC. The named zone, rather than the offset alone, should be used for future dates.
Clock changes in Cheonan
370-day checked horizon
No UTC offset change was found through Monday, 6 September 2027 in runtime time-zone data 2026b.
Time-zone history
UTC offset changes for Cheonan
A bounded record of offset transitions calculated for Asia/Seoul, covering 2021 through 2031. Events are offset changes; their legal or daylight-saving cause is not inferred.
Previous 5 years
No UTC offset transition was found in the previous 5 years.
Next 5 years
No UTC offset transition was found in the next 5 years.
Dates are calculated from IANA time-zone rules. The calculation checks for offset changes throughout the displayed period and resolves each change to the nearest second.
Location context
About Cheonan
Location details for Cheonan in Chungcheongnam-do, South Korea.
- Administrative area
- Chungcheongnam-do, South Korea
- Population
- 658,831
- Coordinates
- 36.8065° N, 127.1522° E. The elevation is 40 metres.
Nearby city clocks
Cities near Cheonan
Nearby cities are ordered by approximate straight-line distance from Cheonan. Times are calculated for the same instant shown above.
- SeonghwanChungcheongnam-do, South Korea12 km north
Asia/SeoulSame local time - AsanChungcheongnam-do, South Korea13 km west
Asia/SeoulSame local time - YesanChungcheongnam-do, South Korea31 km southwest
Asia/SeoulSame local time - GongjuChungcheongnam-do, South Korea39 km south
Asia/SeoulSame local time - TangjinChungcheongnam-do, South Korea48 km west
Asia/SeoulSame local time - HongseongChungcheongnam-do, South Korea49 km southwest
Asia/SeoulSame local time
Sources for Cheonan time and city facts
Time-zone calculations use runtime tzdb 2026b. Weather and astronomy sources include their own retrieval times where available.
View 4 sources
- GeoNames cities15000GeoNames · 2026-07-15_01-57-51-849 · CC BY 4.0 · AccessedCity and country names, administrative area, coordinates and population.
- IANA Time Zone DatabaseInternet Assigned Numbers Authority · 2026b · Public domain · AccessedTime-zone names, UTC offsets and clock changes.
- Unicode Common Locale Data RepositoryUnicode Consortium · 48.0 · Unicode License v3 · AccessedEnglish display names for countries, currencies and languages.
- Weather and Geolocation APIWeatherAPI.com · Forecast API v1; free plan · WeatherAPI.com terms; commercial and non-commercial use permitted by plan · AccessedCurrent weather conditions, the next 24 hours and a three-day forecast.