Current local time in Lang Son, Vietnam
The live clock above shows the time in Lang Son. Lang Son is in the Asia/Ho Chi Minh time zone, UTC+7 right now.
| Country | Vietnam |
|---|---|
| Region | Lạng Sơn |
| Population | about 148,000 |
| Coordinates | 21.85° N, 106.76° E |
| Time zone | Asia/Ho Chi Minh |
| Abbreviation | UTC+7 |
| UTC offset | UTC+7 |
| Daylight saving time | No |
Daylight saving time
Lang Son doesn't use daylight saving time. It stays on UTC+7 all year.
Sunrise, sunset and daylight
Today: sunrise …, sunset …, .
| 2026 | Sunrise | Sunset | Daylight |
|---|---|---|---|
| March equinox | 5:57 AM | 6:03 PM | 12 h 6 min |
| June solstice | 5:10 AM | 6:38 PM | 13 h 28 min |
| September equinox | 5:41 AM | 5:50 PM | 12 h 8 min |
| December solstice | 6:26 AM | 5:14 PM | 10 h 47 min |
Clock time vs. sun time
The sun is highest over Lang Son at about 12:01 PM in mid-January. On standard time, local clocks run about 7 minutes behind the sun, because Lang Son sits at 106.8° E, while its time zone is centred on 105.0° E.
Lang Son time compared with other cities
| City | Time now | Compared with Lang Son |
|---|---|---|
| New York | 12 hours behind in Jan, 11 hours behind in Jul | |
| Los Angeles | 15 hours behind in Jan, 14 hours behind in Jul | |
| London | 7 hours behind in Jan, 6 hours behind in Jul | |
| Paris | 6 hours behind in Jan, 5 hours behind in Jul | |
| Dubai | 3 hours behind | |
| Mumbai | 1.5 hours behind | |
| Shanghai | 1 hour ahead | |
| Tokyo | 2 hours ahead | |
| Sydney | 4 hours ahead in Jan, 3 hours ahead in Jul |
Nearby cities
| City | Distance | Time now vs Lang Son |
|---|---|---|
| Thai Nguyen | 100 km (62 mi) | same time |
| Hong Gai | 105 km (65 mi) | same time |
| Haiphong | 113 km (70 mi) | same time |
| Hanoi | 130 km (81 mi) | same time |
| Viet Tri | 149 km (92 mi) | same time |
| Son Tay | 152 km (94 mi) | same time |
| Thai Binh | 161 km (100 mi) | same time |
| Nam Dinh | 169 km (105 mi) | same time |
Other cities in Vietnam
- Ho Chi Minh City
- Hanoi
- Haiphong
- Da Nang
- Can Tho
- Bien Hoa
- Hue
- Qui Nhon
- Vinh
- Thai Nguyen
- Nha Trang
- Viet Tri
- Ca Mau
- Long Xuyen
- Rach Gia
- Phan Thiet
- Buon Me Thuot
- Thu Dau Mot
Questions people ask
What time zone is Lang Son in?
Lang Son is in the Asia/Ho Chi Minh time zone, UTC+7, all year.
Does Lang Son have daylight saving time?
Lang Son doesn't use daylight saving time. It stays on UTC+7 all year.
Why isn't noon in Lang Son when the sun is highest?
Because time zones are wide. Lang Son's clocks follow a zone centred on 105.0° E, so on standard time they run about 7 minutes behind the sun. Daylight saving time adds another hour.
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Time zone data: IANA tz database 2026e. Population: Natural Earth (approximate).