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- Type a city, a country or a zone such as “CET” or “Tokyo”.
Current local time in Lang Son, Vietnam
Asia/Ho_Chi_Minh
Observatory log
Lang Son, observed
- 01Time zone
Indochina Time
UTC+7 · IANA
Asia/Ho_Chi_Minh- 02Daylight saving
Lang Son does not observe daylight saving time.
Clocks stay on UTC+7 all year. No change is scheduled in tzdata 2026e.
- 03Sun today
- Sunrise05:50Sunset17:24Day length11 h 34 minSolar noon11:37
MoonWaxing gibbous, 65% lit
Golden hour05:37–06:21 · 16:54–17:38
- 04Working hours
Counted as 09:00–17:00 local; the weekend in Vietnam is Saturday and Sunday.
- 05Best time to call
- 06Time zones in Vietnam
- BangkokUTC+7
- Ho Chi Minh CityUTC+7
- 07Also on this clock
- 08Coordinates
21.85° N, 106.76° E · Lạng Sơn
Differences
Lang Son and the world
| City | Local time | Difference from Lang SonDiff. |
|---|---|---|
 London | −6 h | |
 New York | −11 h | |
| Los Angeles | −14 h | |
| Chicago | −12 h | |
 São Paulo | −10 h | |
 Paris | −5 h | |
 Dubai | −3 h | |
 Mumbai | −1 h 30 min | |
 Singapore | +1 h | |
 Hong Kong | +1 h | |
 Tokyo | +2 h |
Questions
Asked about Lang Son
What time zone is Lang Son in?
Lang Son uses Indochina Time, UTC+7. Its IANA time-zone ID is Asia/Ho_Chi_Minh.
Does Lang Son use daylight saving time?
No. Lang Son does not observe daylight saving time: the clocks stay on Indochina Time (UTC+7) all year.
When does the sun rise and set in Lang Son today?
Today in Lang Son the sun rises at 05:50 and sets at 17:24, giving 11 h 34 min of daylight.