Current Time in Sơn Tây
How to Check Current Time in Sơn Tây, Vietnam
Open the Sơn Tây time converter page: Go to https://www.xconvert.com/time-converter/vietnam/son-tay. The page loads with Sơn Tây pre-selected on the comparison grid, which is useful if you are scheduling a supplier call near Hanoi, confirming a travel pickup time in western Hanoi province, or coordinating with a Vietnam-based operations team.
Add comparison cities relevant to your schedule: Click + Add City and search for cities such as New York, London, or Tokyo. These are practical comparisons for apparel sourcing, electronics manufacturing coordination, logistics planning, and regional business across North America, Europe, and East Asia that often overlaps with Vietnam working hours.
Drag across the grid to compare a workable meeting window: Click Select if needed, then drag on Sơn Tây’s 24-hour timeline to highlight a range such as 9:00 AM to 11:00 AM local time. That visual selection immediately shows that 9:00 AM in Sơn Tây is 9:00 PM in New York the previous day during standard time, 1:00 AM in London, and 10:00 AM in Tokyo, helping you quickly see that a Vietnam morning works better for Japan than for the US East Coast.
Export the selected time for sharing: After selecting a range, use the export options shown on the page: ICS download, Google Calendar, Gmail, Copy to clipboard, or Share link. This is especially useful when sending a confirmed meeting slot to a distributed team, adding a factory inspection appointment to a calendar, or sharing a travel coordination window so each person sees the time in their own local zone automatically.
About Sơn Tây Time Zone
Sơn Tây uses the Asia/Bangkok time zone in the IANA database. This time zone runs at UTC+07:00 year-round, meaning local time in Sơn Tây is always seven hours ahead of Coordinated Universal Time and does not shift seasonally.
Vietnam does not observe daylight saving time, so Sơn Tây keeps the same UTC offset in January, June, and December. That makes planning easier than with countries such as the United States or the United Kingdom, where offsets change in March and November or March and October respectively; a recurring meeting with Sơn Tây stays fixed on the Vietnam side while the foreign side may move by one hour during DST transitions.
Geographically, Sơn Tây is in northern Vietnam, west of central Hanoi, and shares the same national time standard used across the entire country. Its UTC+07:00 alignment matches nearby countries and zones such as Thailand, Cambodia, and Laos, while it is one hour behind China and Singapore (UTC+08:00) and two hours behind Japan and South Korea (UTC+09:00), which matters for regional trade, airline schedules, and same-day business communication across Asia.
Sơn Tây City Details
Sơn Tây is a city in Vietnam with a population of 76,956, making it a mid-sized urban center in the greater Hanoi region rather than a small rural locality. Its position near the capital gives it practical relevance for commuters, regional administration, education, military facilities, and businesses serving northern Vietnam.
The city is located at 21.14053° N, 105.50686° E, placing it in the Red River Delta area of northern Vietnam. Those coordinates place Sơn Tây inland, northwest of central Hanoi, which is useful for mapping travel times to Nội Bài International Airport, Hanoi industrial zones, and nearby provincial destinations.
The local currency is the Vietnamese đồng (VND), which is used for all everyday transactions including hotels, taxis, meals, and domestic business payments. The country dialing code is +84, so international callers reaching Sơn Tây from abroad would dial Vietnam first, then the local number format used within the country.
Time Differences from Sơn Tây
Sơn Tây is at UTC+07:00, so its time difference with other cities depends on whether those cities use daylight saving time.
- New York: New York is 12 hours behind Sơn Tây during Eastern Standard Time (UTC-05:00) and 11 hours behind during Eastern Daylight Time (UTC-04:00). When it is 9:00 AM in Sơn Tây, it is 9:00 PM the previous day in New York during standard time, or 10:00 PM the previous day during daylight time.
- London: London is 7 hours behind Sơn Tây during Greenwich Mean Time (UTC+00:00) and 6 hours behind during British Summer Time (UTC+01:00). When it is 9:00 AM in Sơn Tây, it is 2:00 AM in London in winter or 3:00 AM during summer time.
- Tokyo: Tokyo is consistently 2 hours ahead of Sơn Tây because Japan uses UTC+09:00 and does not observe DST. When it is 9:00 AM in Sơn Tây, it is 11:00 AM in Tokyo, which often creates a convenient overlap for same-day business calls.
- Sydney: Sydney is usually 3 hours ahead of Sơn Tây during Australian standard time (AEST, UTC+10:00) and 4 hours ahead during daylight saving time (AEDT, UTC+11:00). When it is 9:00 AM in Sơn Tây, it is 12:00 PM in Sydney in standard time or 1:00 PM during DST.
- Dubai: Dubai is 3 hours behind Sơn Tây because Dubai uses UTC+04:00 year-round with no daylight saving time. When it is 9:00 AM in Sơn Tây, it is 6:00 AM in Dubai, which can still work for early logistics, shipping, and trade coordination.
For practical scheduling, Sơn Tây business hours around 9:00 AM to 5:00 PM overlap best with Tokyo and Sydney, partially with Dubai, and only with very early morning or late evening windows for London and New York. This matters for export manufacturing, sourcing, customer support, and remote team handoffs where Vietnam often serves as an Asia-based operating location.
Frequently Asked Questions
What time zone is Sơn Tây in?
Sơn Tây is in the Asia/Bangkok time zone, which is the IANA time zone identifier used for Vietnam on many operating systems, servers, and calendar platforms. In practical terms, this means Sơn Tây follows UTC+07:00 throughout the year, the same national time used in Hanoi and the rest of Vietnam.
Does Sơn Tây observe daylight saving time?
No, Sơn Tây does not observe daylight saving time. Vietnam keeps a constant UTC+07:00 offset all year, so the local clock in Sơn Tây does not move forward in spring or backward in autumn, unlike cities in the US, UK, or Australia.
What is the time difference between Sơn Tây and New York?
The difference changes depending on the season in New York because New York uses daylight saving time while Sơn Tây does not. Sơn Tây is 12 hours ahead of New York during EST and 11 hours ahead during EDT, so a morning in Vietnam usually falls on the previous evening in New York.
What is the best time to call Sơn Tây from the US or UK?
For the US East Coast, the most practical time to call Sơn Tây is usually 8:00 PM to 10:00 PM in New York, which corresponds to 7:00 AM to 9:00 AM or 8:00 AM to 10:00 AM in Sơn Tây depending on the US daylight saving period. For the UK, a late afternoon slot such as 3:00 PM to 5:00 PM in London maps to 9:00 PM to 11:00 PM or 10:00 PM to 12:00 AM in Sơn Tây, so earlier UK mornings are often better if you want to stay within Vietnam office hours.
What is the UTC offset for Sơn Tây?
Sơn Tây uses a fixed UTC offset of UTC+07:00. Because there is no daylight saving time in Vietnam, this offset stays the same every month of the year, which simplifies recurring calendar events and travel planning.
What currency does Sơn Tây use?
Sơn Tây uses the Vietnamese đồng, abbreviated VND. If you are traveling there or paying local vendors, prices for transport, meals, lodging, and services will be quoted in VND rather than US dollars or other foreign currencies.
Is Sơn Tây on the same time as Hanoi?
Yes, Sơn Tây and Hanoi use exactly the same local time because all of Vietnam follows one national time standard: UTC+07:00. Since Sơn Tây is part of the wider Hanoi region in northern Vietnam, there is no internal time difference to account for when traveling or scheduling between the two locations.