Updating current time…
ADT
12am
3am
6am
9am
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3pm
6pm
9pm
VietnamICT
UTC+7
10h ahead
12am
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9am
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6pm
9pm

Quick answers

Selected conversion

9:00 am09:00 ADT (UTC-3), Oct 30, 2026 = 7:00 pm19:00 ICT (UTC+7), Oct 30, 2026

ADT is 10 hours behind Thái Nguyên.

How the time difference changes

For most of the year, ADT is 10 hours behind Thai Nguyen. From Nov 1, 2026 to Mar 14, 2027, AST is 11 hours behind Thai Nguyen.

For most of the year, working hours of 9:00 am to 6:00 pm in ADT correspond to 7:00 pm to 4:00 am (next day) in Thai Nguyen. At other times of the year, working hours of 9:00 am to 6:00 pm in AST correspond to 8:00 pm to 5:00 am (next day) in Thai Nguyen.For most of the year, working hours of 09:00 to 18:00 in ADT correspond to 19:00 to 04:00 (next day) in Thai Nguyen. At other times of the year, working hours of 09:00 to 18:00 in AST correspond to 20:00 to 05:00 (next day) in Thai Nguyen.

Compare ADT time with Thai Nguyen time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Atlantic Daylight Time is 10 hours behind ICT (Indochina Time).
9:00 am09:00 in ADT is 7:00 pm19:00 in Thai Nguyen, Vietnam

ADT to Thái Nguyên call time
Best time for a conference call or a meeting is between 8am-9am08:00-09:00 in ADT which corresponds to 6pm-7pm18:00-19:00 in Thái Nguyên. Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.

9:00 am09:00 Atlantic Daylight Time (ADT). Offset UTC -3:00 hours
7:00 pm19:00 ICT (Indochina Time) (Thai Nguyen, Vietnam). Offset UTC +7:00 hours

9:00 am09:00 ADT / 7:00 pm19:00 Thai Nguyen, Vietnam

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Hourly time comparison
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Atlantic Daylight Time

Offset: ADT is 3 hours behind Greenwich Mean Time (GMT).

Countries using this time zone: Bermuda, Canada, Greenland

Principal Cities: The largest city in the ADT time zone is Halifax in Canada, with about 471,559 people. Other major cities in this time zone include Sydney, Moncton, Saint John, Fredericton.

French: HAA - Heure Avancée de l'Atlantique

Map of the areas on Atlantic Daylight Time (ADT)
ADT part of the year

Today all shaded areas are on ADT.

Daylight Saving: Atlantic Daylight Time (ADT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Atlantic Standard Time (AST).

123456789101112Start: Atlantic Daylight Time (ADT) started on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am03:00. Daylight saving starts annually on the second Sunday of March.

123456789101112End: Atlantic Daylight Time (ADT) ends on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, November 1, 2026, 1:00 am01:00 local standard time instead. Daylight saving ends annually on the first Sunday of November.

See Canada daylight saving time and upcoming clock changes worldwide.

ADT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -03 - basic short
  • -0300 - basic
  • -03:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0300 - sign character (-) followed by a four digit time providing hours (03) and minutes (00) of the offset. Indicates an offset of three hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Papa - Military abbreviation for ADT
  • P - short form of 'Papa'
IANA/Olson: Reflects ADT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Glace_Bay
  • America/Goose_Bay
  • America/Halifax
  • America/Moncton
  • America/Thule
  • Atlantic/Bermuda
  • Canada/Atlantic
Time zones with the GMT -3 offset:
  • ADT - Atlantic Daylight Time
  • PMT - Pierre & Miquelon Standard Time
  • PMST - Pierre & Miquelon Standard Time
  • AMST - Amazon Summer Time
  • ART - Argentina Time
  • BRT - Brasilia Time
  • CLST - Chile Summer Time
  • FKST - Falkland Islands Summer Time
  • FKT - Falkland Islands Time
  • GFT - French Guiana Time
  • P - Papa Time Zone
  • PYST - Paraguay Summer Time
  • PYT - Paraguay Time
  • SRT - Suriname Time
  • UYT - Uruguay Time

Thái Nguyên Time Zone and Facts

Time Zone

Abbreviation / Offset
ICT – Indochina Time, UTC+7 (no daylight saving time)

Thái Nguyên Facts

Country
Vietnam
Alternative Names
Taj-Nguen, Thai Nguyen, Thanh Pho Thai Nguyen, Thành Phố Thái Nguyên, Thái Nguyên, Тай-Нгуен
Population
420,000
Currency
Dong (VND)
Geographic Coordinates
21° 35' N Latitude / 105° 50' E Longitude
International Dialing Code
+84