NDT — Newfoundland Daylight Time
See what NDT means, where it is used in Canada, how it relates to NST during DST, and convert it to other time zones.
Countries: Canada
How to Convert NDT to Other Time Zones
Open the NDT converter page: Go to https://www.xconvert.com/time-converter/ndt-time-zone to load Newfoundland Daylight Time as the starting reference on the visual comparison grid. This page is useful when you are scheduling a call with a team in St. John's or coordinating travel and ferry, flight, or customer support timing in Newfoundland and Labrador, where the local summer clock is a distinctive half-hour offset.
Add comparison cities: Click + Add City and search for cities such as Toronto, New York, and London to compare NDT with major business and travel hubs. This is especially practical for Canadian companies coordinating with mainland offices, offshore energy and fisheries operations linked to Atlantic Canada, or remote teams working with clients in North America and Europe.
Select a time range on the grid: Click Select, then drag across the NDT row to highlight a block such as 9:00 AM to 11:00 AM NDT; the purple selection will instantly show the matching times in every added city. For example, 9:00 AM NDT is 7:30 AM in Toronto and New York during Eastern Daylight Time, and 1:30 PM in London during British Summer Time, which helps confirm whether a morning meeting in St. John's is early but workable for eastern North America and still within the business day in the UK.
Export and share the result: After selecting the time range, use the export options shown on the page: ICS download, Google Calendar, Gmail, Copy to clipboard, or Share link. This is useful if you want to send a confirmed meeting window to a distributed team, create a calendar event that automatically appears in each participant's local time, or share a link with a travel group planning an arrival in Newfoundland.
About Newfoundland Daylight Time (NDT)
Newfoundland Daylight Time (NDT) is the daylight saving time used in the Canadian province of Newfoundland and Labrador, primarily on the island portion and nearby communities that follow the Newfoundland time system. Its exact offset is UTC-2:30, making it one of the few regularly used half-hour time zones in North America.
NDT is observed during the warmer part of the year as the daylight-saving counterpart to Newfoundland Standard Time (NST). NST is UTC-3:30, so when clocks move forward for daylight saving time, the region shifts ahead by one hour to NDT at UTC-2:30. This means NDT is 30 minutes ahead of Atlantic Daylight Time (UTC-3) and 1 hour 30 minutes ahead of Eastern Daylight Time (UTC-4).
The principal cities associated with NDT include St. John's, Mount Pearl, Corner Brook, Conception Bay South, and Bay Roberts. St. John's, the provincial capital, has a metropolitan population of roughly 220,000 people, making it the largest urban center in the province and the main reference point for Newfoundland time in business, government, education, and transportation scheduling.
Because Newfoundland uses a half-hour offset, time conversion requires extra attention for business calls and travel planning. For example, when it is 9:00 AM in St. John's during NDT, it is 8:30 AM in Halifax if Halifax is on Atlantic Daylight Time, 7:30 AM in Toronto if Toronto is on Eastern Daylight Time, and 12:30 PM in UTC. That half-hour difference often matters when booking flights, timing television broadcasts, arranging customer service coverage, or coordinating remote work handoffs.
NDT and Daylight Saving Time
NDT is a daylight saving time designation, which means it is not used year-round. The region switches from NST to NDT in spring, moving clocks forward by one hour, and then switches from NDT back to NST in autumn, moving clocks back by one hour.
For 2026, Newfoundland and Labrador switches to NDT on Sunday, March 8, 2026, when clocks move forward from 2:00 AM NST to 3:00 AM NDT. The province returns to NST on Sunday, November 1, 2026, when clocks move back from 2:00 AM NDT to 1:00 AM NST. These dates align with the broader Canadian and U.S. daylight saving schedule, but Newfoundland keeps its own unique half-hour base offset.
During the NDT period, the local clock is UTC-2:30; outside that period, it returns to NST at UTC-3:30. In practical terms, this affects airline itineraries through St. John's International Airport, broadcast schedules, offshore operations, and cross-country meetings with companies in Toronto, Montreal, Calgary, and Vancouver, because the time gap changes slightly depending on whether those locations are also observing daylight saving time.
A useful comparison is that during summer, NDT is 2.5 hours ahead of Pacific Daylight Time, 1.5 hours ahead of Eastern Daylight Time, and 4.5 hours behind Central European Summer Time. So if it is 10:00 AM in St. John's on NDT, it is 8:30 AM in New York, 7:30 AM in Chicago, 6:30 AM in Denver, 5:30 AM in Los Angeles, and 3:00 PM in Berlin when Europe is on summer time.
Frequently Asked Questions
What does NDT stand for?
NDT stands for Newfoundland Daylight Time. It is the daylight saving time used in parts of Newfoundland and Labrador, Canada, and it operates at UTC-2:30, which is a half-hour offset rather than the more common whole-hour format.
Is NDT the same as NST?
No, NDT and NST are not the same. NST means Newfoundland Standard Time and uses UTC-3:30, while NDT is the daylight saving version at UTC-2:30, exactly one hour ahead of NST during the summer season.
Which cities use NDT?
Cities that use NDT during daylight saving time include St. John's, Mount Pearl, Corner Brook, Conception Bay South, and Bay Roberts. These communities are in Newfoundland and Labrador, Canada, and they follow the Newfoundland time system rather than Atlantic Time used in nearby Maritime provinces such as Nova Scotia and New Brunswick.
What is the UTC offset for NDT?
The exact UTC offset for NDT is UTC-2:30. That means local time in Newfoundland Daylight Time is 2 hours and 30 minutes behind Coordinated Universal Time, so when it is 12:00 PM UTC, it is 9:30 AM NDT.
When does NDT change?
NDT changes twice each year because it is a daylight saving time zone. In 2026, clocks change to NDT on March 8, 2026, and change back to NST on November 1, 2026, so anyone planning meetings, flights, or project deadlines around those weekends should verify the local offset carefully.
Is Newfoundland time really 30 minutes different from other Canadian time zones?
Yes, Newfoundland time is one of the best-known half-hour time zones in Canada and North America. During daylight saving time it uses UTC-2:30, which places it 30 minutes ahead of Atlantic Daylight Time and creates unusual meeting conversions, such as 9:00 AM in Halifax becoming 9:30 AM in St. John's.
How far ahead is NDT compared with Toronto or New York?
When Toronto and New York are on Eastern Daylight Time, NDT is 1 hour 30 minutes ahead. That means if it is 9:00 AM in Toronto or New York, it is 10:30 AM in St. John's, which is important for scheduling support hours, sales calls, and same-day logistics.
Why does Newfoundland use NDT instead of Atlantic Daylight Time?
Newfoundland maintains its own historical time standard rather than matching the Atlantic Time Zone exactly. The province's long-established system centers on the Newfoundland meridian and results in the distinctive half-hour offset, so during summer it uses NDT (UTC-2:30) instead of ADT (UTC-3).