NDT to HAA Converter
HAA is not used on this date
This converter keeps HAA at UTC−3. Moncton uses AST (UTC−4) on this date. Open the AST converter, or choose Santo Domingo, Santiago de los Caballeros, or Santo Domingo Oeste for city-specific time.Start by searching for a time zone, city, or town.
Add one or more places to compare local times, adjust the date, and share the result.
Quick answers
Selected conversion
11:00 am11:00 NST (UTC-3:30), Nov 1, 2026 = 11:30 am11:30 HAA (UTC-3), Nov 1, 2026
NST is 30 minutes behind HAA.
NDT and HAA examples
These examples always use NDT (UTC-2:30) and HAA (UTC-3). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
NDT is 30 minutes ahead of HAA.
How the time difference changes
For most of the year, NDT is 30 minutes ahead of HAA. From Nov 1, 2026 to Mar 14, 2027, NST is 30 minutes behind HAA.
For most of the year, working hours of 9:00 am to 6:00 pm in NDT correspond to 8:30 am to 5:30 pm in HAA. At other times of the year, working hours of 9:00 am to 6:00 pm in NST correspond to 9:30 am to 6:30 pm in HAA.For most of the year, working hours of 09:00 to 18:00 in NDT correspond to 08:30 to 17:30 in HAA. At other times of the year, working hours of 09:00 to 18:00 in NST correspond to 09:30 to 18:30 in HAA.
Compare NDT time with HAA time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Newfoundland Standard Time is 30 minutes behind Heure Avancée de l'Atlantique.
11:00 am11:00 in NST is 11:30 am11:30 in HAA
NST to HAA call time
Best time for a conference call or a meeting is between 9am-5:30pm09:00-17:30 in NST which corresponds to 9:30am-6pm09:30-18:00 in HAA
11:00 am11:00 Newfoundland Standard Time (NST). Offset UTC -3:30 hours
11:30 am11:30 Heure Avancée de l'Atlantique (HAA). Offset UTC -3:00 hours
11:00 am11:00 NST / 11:30 am11:30 HAA
Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.
| NST | HAA |
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| 11:30pm previous day | |
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| 23:30 previous day | |
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Newfoundland Daylight Time
Offset: NDT is 2 hours and 30 minutes behind Greenwich Mean Time (GMT).
Countries using this time zone: Canada
Principal Cities: The largest city in the NDT time zone is St. John's in Canada, with about 110,525 people. Other major cities in this time zone include Corner Brook, Grand Falls-Windsor, Gander, Clarenville.
French: HAT - Heure Avancée de Terre-Neuve
Today the shaded areas are on UTC−3:30 (NST).
Daylight Saving: Newfoundland Daylight Time (NDT) is a daylight saving/summer time zone, but some places set clocks back one hour during winter and observe Newfoundland Standard Time (NST).
End: Newfoundland Daylight Time (NDT) ended on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks were 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.
Start: Newfoundland Daylight Time (NDT) starts on Sunday, March 14, 2027 at 2:00 am02:00 local time and clocks are set one hour forward to Sunday, March 14, 2027, 3:00 am03:00. Daylight saving starts annually on the second Sunday of March.
See Canada daylight saving time and upcoming clock changes worldwide.
NDT representations, usage and related time zones
- -0230 - basic
- -02:30 - extended
- -0230 - sign character (-) followed by a four digit time providing hours (02) and minutes (30) of the offset. Indicates an offset of two hours and thirty minutes to the west of the zero meridian.
- America/St_Johns
- Canada/Newfoundland
Heure Avancée de l'Atlantique
Offset: HAA is 3 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Bermuda, Canada, Greenland
Principal Cities: The largest city in the HAA time zone is Halifax in Canada, with about 471,559 people. Other major cities in this time zone include Sydney, Moncton, Saint John, Fredericton.
Today the shaded areas are on UTC−4 (Atlantic Standard Time).
Daylight Saving: Heure Avancée de l'Atlantique (HAA) is a daylight saving/summer time zone, but some places set clocks back one hour during winter and observe Atlantic Standard Time (AST).
End: Heure Avancée de l'Atlantique (HAA) ended on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks were 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.
Start: Heure Avancée de l'Atlantique (HAA) starts on Sunday, March 14, 2027 at 2:00 am02:00 local time and clocks are set one hour forward to Sunday, March 14, 2027, 3:00 am03:00. Daylight saving starts annually on the second Sunday of March.
See Canada daylight saving time and upcoming clock changes worldwide.
HAA representations, usage and related time zones
- -03 - basic short
- -0300 - basic
- -03:00 - extended
- -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.
- Papa - Military abbreviation for HAA
- P - short form of 'Papa'
- 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