Sunrise and Sunset times in Lang Son, Vietnam 
Today:
 Sunrise: 06:33:36
|
 Sunset: 17:34:45
|
Day Length: 11h 1m 9s
Time zone: Asia/Ho_Chi_Minh, UTC +7 h.
Latitude: 21.846, Longitude: 106.757
Lang Son
Lạng Sơn, Vietnam 
148 000 people
| Date | Sunrise | Solar Noon | Sunset | Day length |
|---|---|---|---|---|
| 2026-Jan-01, Thursday | 06:31:32 | 11:56:24 | 17:21:16 | 10h 49m 44s |
| 2026-Jan-02, Friday | 06:31:50 | 11:56:52 | 17:21:53 | 10h 50m 3s |
| 2026-Jan-03, Saturday | 06:32:07 | 11:57:20 | 17:22:32 | 10h 50m 25s |
| 2026-Jan-04, Sunday | 06:32:23 | 11:57:47 | 17:23:11 | 10h 50m 48s |
| 2026-Jan-05, Monday | 06:32:38 | 11:58:14 | 17:23:50 | 10h 51m 12s |
| 2026-Jan-06, Tuesday | 06:32:52 | 11:58:41 | 17:24:30 | 10h 51m 38s |
| 2026-Jan-07, Wednesday | 06:33:04 | 11:59:07 | 17:25:10 | 10h 52m 6s |
| 2026-Jan-08, Thursday | 06:33:15 | 11:59:32 | 17:25:50 | 10h 52m 35s |
| 2026-Jan-09, Friday | 06:33:25 | 11:59:57 | 17:26:30 | 10h 53m 5s |
| 2026-Jan-10, Saturday | 06:33:33 | 12:00:22 | 17:27:11 | 10h 53m 38s |
| 2026-Jan-11, Sunday | 06:33:40 | 12:00:46 | 17:27:52 | 10h 54m 12s |
| 2026-Jan-12, Monday | 06:33:46 | 12:01:09 | 17:28:33 | 10h 54m 47s |
| 2026-Jan-13, Tuesday | 06:33:50 | 12:01:32 | 17:29:15 | 10h 55m 25s |
| 2026-Jan-14, Wednesday | 06:33:53 | 12:01:54 | 17:29:56 | 10h 56m 3s |
| 2026-Jan-15, Thursday | 06:33:55 | 12:02:16 | 17:30:37 | 10h 56m 42s |
| 2026-Jan-16, Friday | 06:33:55 | 12:02:37 | 17:31:19 | 10h 57m 24s |
| 2026-Jan-17, Saturday | 06:33:54 | 12:02:57 | 17:32:00 | 10h 58m 6s |
| 2026-Jan-18, Sunday | 06:33:51 | 12:03:17 | 17:32:42 | 10h 58m 51s |
| 2026-Jan-19, Monday | 06:33:48 | 12:03:35 | 17:33:23 | 10h 59m 35s |
| 2026-Jan-20, Tuesday | 06:33:42 | 12:03:53 | 17:34:04 | 11h 0m 22s |
| 2026-Jan-21, Wednesday | 06:33:36 | 12:04:11 | 17:34:45 | 11h 1m 9s |
| 2026-Jan-22, Thursday | 06:33:28 | 12:04:27 | 17:35:26 | 11h 1m 58s |
| 2026-Jan-23, Friday | 06:33:19 | 12:04:43 | 17:36:07 | 11h 2m 48s |
| 2026-Jan-24, Saturday | 06:33:08 | 12:04:58 | 17:36:47 | 11h 3m 39s |
| 2026-Jan-25, Sunday | 06:32:56 | 12:05:12 | 17:37:28 | 11h 4m 32s |
| 2026-Jan-26, Monday | 06:32:43 | 12:05:25 | 17:38:08 | 11h 5m 25s |
| 2026-Jan-27, Tuesday | 06:32:29 | 12:05:38 | 17:38:47 | 11h 6m 18s |
| 2026-Jan-28, Wednesday | 06:32:13 | 12:05:50 | 17:39:27 | 11h 7m 14s |
| 2026-Jan-29, Thursday | 06:31:55 | 12:06:01 | 17:40:06 | 11h 8m 11s |
| 2026-Jan-30, Friday | 06:31:37 | 12:06:11 | 17:40:45 | 11h 9m 8s |
| 2026-Jan-31, Saturday | 06:31:17 | 12:06:20 | 17:41:23 | 11h 10m 6s |
Day length in Lang Son during the year on the chart:
Lang Son on Vietnam map:
Locations in the same time zone Asia/Ho_Chi_Minh
Ho Chi Minh City (Hồ Chí Minh), Hanoi (Hà Nội), Haiphong (Hải Phòng), Can Tho (Cần Thơ), Quang Ha (Quảng Nam), Hue (Thừa Thiên-Huế), Quy Nhon (Bình Định), Bien Hoa (Đồng Nai), Vinh (Nghệ An), Thai Nguyen (Thái Nguyên), Nha Trang (Khánh Hòa), Ca Mau (Cà Mau), Viet Tri (Phú Thọ), Long Xuyen (An Giang), Buon Ma Thuot (Đắk Lắk), Phan Thiet (Bình Thuận), Soc Trang (Sóc Trăng), Rach Gia (Kiến Giang), Ap Da Loi (Lâm Đồng), Quang Ngai (Quảng Ngãi), Vung Tau (Bà Rịa-Vũng Tàu), Thu Dau Mot (Bình Dương), Nam Dinh (Nam Định), Bac Lieu (Bạc Liêu), Thai Binh (Thái Bình), Thanh Hoa (Thanh Hóa), Son Tay (Hà Nội), Dong Hoi (Quảng Bình), Phan Rang-Thap Cham (Ninh Thuận), Ha Long (Quảng Ninh)
Largest populated areas in Vietnam
Ho Chi Minh City (Hồ Chí Minh), Hanoi (Hà Nội), Haiphong (Hải Phòng), Can Tho (Cần Thơ), Quang Ha (Quảng Nam), Hue (Thừa Thiên-Huế), Quy Nhon (Bình Định), Bien Hoa (Đồng Nai), Vinh (Nghệ An), Thai Nguyen (Thái Nguyên), Nha Trang (Khánh Hòa), Ca Mau (Cà Mau), Long Xuyen (An Giang), Viet Tri (Phú Thọ), Buon Ma Thuot (Đắk Lắk), Phan Thiet (Bình Thuận), Rach Gia (Kiến Giang), Soc Trang (Sóc Trăng), Ap Da Loi (Lâm Đồng), Quang Ngai (Quảng Ngãi), Vung Tau (Bà Rịa-Vũng Tàu), Thu Dau Mot (Bình Dương), Nam Dinh (Nam Định), Bac Lieu (Bạc Liêu), Thai Binh (Thái Bình), Thanh Hoa (Thanh Hóa), Son Tay (Hà Nội), Dong Hoi (Quảng Bình), Phan Rang-Thap Cham (Ninh Thuận), Ha Long (Quảng Ninh)
Countries closest to Vietnam
*Calculation of distances from capital to capital
Daylight Hours FAQ: 10 Most Googled Questions Answered
Daylight hours refer to the period between sunrise and sunset. This duration changes throughout the year based on season and geographic location.
Earth's 23.5° axial tilt causes uneven sunlight distribution. Your hemisphere receives less direct sunlight in winter (shorter days) and more in summer (longer days).
Northern Hemisphere: June 20-22 (summer solstice).
Southern Hemisphere: December 21-23.
Near polar circles, the sun doesn't set for 24 hours.
Northern Hemisphere: December 21-22 (winter solstice).
Southern Hemisphere: June 20-21.
The closer to poles, the more extreme variations:
- Equator: ~12-hour days year-round
- Polar regions: Midnight sun/polar nights occur
Miami's lower latitude means:
- Winter days are longer than NY's
- Summer days are slightly shorter
During equinoxes:
- Spring: March 20-21
- Fall: September 22-23
Most rapid change near equinoxes: 2-4 minutes daily.
Slowest change near solstices: <1 minute daily.
Reliable tools:
- Timeanddate.com
- SunCalc.org
- Photographer's Ephemeris app
Yes. Reduced winter sunlight may cause:
- Seasonal Affective Disorder (SAD)
- Vitamin D deficiency
Solution: Light therapy lamps & midday walks