Sầm Sơn keeps UTC+7 all year. There is no daylight saving time, so the clock never changes.
Sầm Sơn and your time
Sầm Sơn at a glance
| Country | Vietnam |
|---|---|
| Region | Thanh Hóa Province |
| Time zone | Asia/Ho_Chi_Minh |
| UTC offset now | UTC+7 |
| Daylight saving time | Not observed |
| Coordinates | 19.73° N, 105.90° E |
Time zone in Sầm Sơn
Sầm Sơn follows the Asia/Ho_Chi_Minh time zone and stays on UTC+7 all year. The tz database records no daylight saving time here since 1970.
All of Vietnam keeps the same time, so Sầm Sơn reads the same clock as Hanoi.
Clock changes in Sầm Sơn, 2026 and 2027
No clock changes are scheduled in Sầm Sơn for 2026 or 2027.
Sầm Sơn time compared with major cities
Take 9:00 AM in Sầm Sơn: the clock reads 9:00 PM (previous day) in New York, 1:00 PM in Sydney and 6:00 PM (previous day) in Los Angeles.
| City | Time now | Difference now | In January | In July | Shared office hours |
|---|---|---|---|---|---|
| New York (United States) | --:-- | 12 h behind | 12 h behind | 11 h behind | None |
| Los Angeles (United States) | --:-- | 15 h behind | 15 h behind | 14 h behind | None |
| London (United Kingdom) | --:-- | 7 h behind | 7 h behind | 6 h behind | 1 h |
| Paris (France) | --:-- | 6 h behind | 6 h behind | 5 h behind | 2 h |
| Dubai (United Arab Emirates) | --:-- | 3 h behind | 3 h behind | 3 h behind | 5 h |
| Mumbai (India) | --:-- | 1 h 30 min behind | 1 h 30 min behind | 1 h 30 min behind | 6 h 30 min |
| Singapore | --:-- | 1 h ahead | 1 h ahead | 1 h ahead | 7 h |
| Tokyo (Japan) | --:-- | 2 h ahead | 2 h ahead | 2 h ahead | 6 h |
| Sydney (Australia) | --:-- | 4 h ahead | 4 h ahead | 3 h ahead | 4 h |
| UTC | --:-- | 7 h behind | 7 h behind | 7 h behind | 1 h |
Because Sầm Sơn keeps one offset all year, any change in the gap comes from the other city’s daylight saving time. Compare the January and July columns.
Shared office hours is the part of a 9 AM to 5 PM local working day that both cities have in common. Weekends are not taken into account.
Sunrise and sunset in Sầm Sơn
Today
| Sunrise | --:-- |
|---|---|
| Sunset | --:-- |
| Day length | -- |
| Solar noon | --:-- |
Day length barely moves in Sầm Sơn, from 10 hours 56 minutes to 13 hours 20 minutes. Sunrise and sunset shift by less than an hour across the year.
Daylight through the year in Sầm Sơn
| Date | Sunrise | Sunset | Day length | |
|---|---|---|---|---|
| March equinox | March 20 | 6:01 AM | 6:07 PM | 12 h 6 min |
| June solstice | June 21 | 5:18 AM | 6:38 PM | 13 h 20 min |
| September equinox | September 23 | 5:45 AM | 5:52 PM | 12 h 7 min |
| December solstice | December 22 | 6:27 AM | 5:23 PM | 10 h 56 min |
Clock time and sun time in Sầm Sơn
Clock time and sun time line up fairly well in Sầm Sơn: solar noon falls at about 11:55 AM on standard time.
Cities near Sầm Sơn
All the places listed below keep the same time as Sầm Sơn.
| City | Distance | Time now | Difference |
|---|---|---|---|
| Thanh Hóa | 16 km (10 mi) | --:-- | Same time |
| Bỉm Sơn | 39 km (24 mi) | --:-- | Same time |
| Nghi Sơn | 46 km (29 mi) | --:-- | Same time |
| Hoàng Mai | 55 km (34 mi) | --:-- | Same time |
| Ninh Binh | 59 km (37 mi) | --:-- | Same time |
| Nam Định | 83 km (52 mi) | --:-- | Same time |
| Phu Ly | 90 km (56 mi) | --:-- | Same time |
| Thái Bình | 92 km (57 mi) | --:-- | Same time |
More cities in Vietnam
All time zones and cities in Vietnam
Plan around the time in Sầm Sơn
- Convert a time to or from Sầm Sơn: pick a date and time and see it in every city on your list.
- Add Sầm Sơn to your world clock to keep it next to your own time.
- Find a meeting time that falls inside office hours in Sầm Sơn and the other cities you work with.
- Open a full-screen clock for your own time zone.
Frequently asked questions
What time zone is Sầm Sơn in?
Sầm Sơn uses the Asia/Ho_Chi_Minh time zone, which is UTC+7 all year.
Does Sầm Sơn use daylight saving time?
No. Sầm Sơn stays on UTC+7 all year, so the time difference to places without daylight saving time never changes.
What is the time difference between Sầm Sơn and New York?
Sầm Sơn is 12 hours ahead of New York in January and 11 hours ahead of New York in July, because New York moves its clocks for daylight saving time and Sầm Sơn does not.
Is Sầm Sơn on the same time as Hanoi?
Yes. Sầm Sơn and Hanoi both use UTC+7 right now.
How long is the longest day in Sầm Sơn?
About 13 hours 20 minutes, around the June solstice. The shortest day, around the December solstice, has about 10 hours 56 minutes of daylight.
Time zone rules: IANA tz database, version 2026e. Place names and coordinates: GeoNames. Sunrise and sunset are calculated from the coordinates and can differ by a minute or two from local almanacs.