Time zone · Americas
NDT
Newfoundland Daylight Time
Newfoundland Daylight Time (NDT) is a unique timezone in Canada that sits at UTC-03:30 standard and UTC-02:30 during daylight saving—making it one of the world’s few half-hour offset zones, with a rhythm that shapes daily life and cross-border coordination in Newfoundland.
Friday, June 5, 2026
Current offset
UTC-02:30
Daylight · NDT
Daylight saving
Active
Reverts 1 Nov 2026
IANA zones
1
1 observe DST, 0 don't
DST offset
—
No summer variant
About NDT
Standard time, with a summer shift.
Newfoundland Daylight Time (NDT) is a unique timezone in Canada that sits at UTC-03:30 standard and UTC-02:30 during daylight saving—making it one of the world’s few half-hour offset zones, with a rhythm that shapes daily life and cross-border coordination in Newfoundland.
IANA zones · the technical identifiers
The zone that resolve to NDT.
For software, always store the IANA identifier — never the abbreviation alone. The database keeps these zones distinct because their rules can, and historically did, diverge.
Where NDT is used
One country.
Frequently asked questions
Common questions about NDT, daylight saving, and how to handle it in software. Can't find what you need? Email [email protected].
- Why does Newfoundland use a 30-minute offset from UTC?
- Newfoundland’s historical isolation and geography led to a mid-point standard between Atlantic Time zones, creating the distinct UTC-03:30 base offset.
- How does NDT’s daylight saving shift compare to most other Canadian times?
- While much of Canada shifts by one hour during DST, Newfoundland shifts from UTC-03:30 to UTC-02:30—a full hour ahead, but still maintaining its unique half-hour offset from UTC.
- What’s special about the DST period in Newfoundland?
- During daylight saving, NDT (UTC-02:30) creates a rare alignment where clocks are only half an hour off from Eastern Daylight time, easing some east-coast coordination despite being a different time zone.
- How does NDT affect flight and business scheduling with the rest of Canada?
- Even within Canada, you must add 30 minutes to the usual Atlantic–Central or Pacific difference—Newfoundland is its own pocket of time, especially during DST.
- When does NDT end each year?
- Daylight saving in Newfoundland typically ends early November (e.g., 2026-11-01), when clocks fall back from NDT to NST (UTC-03:30).
- Why is St. John’s the main representative zone for NDT?
- St. John’s is the capital and largest city of Newfoundland and Labrador, and its clocks follow NDT, making it the official face of this time zone.
- Are there other places using a 30-minute offset like NDT?
- Very few. Newfoundland’s NDT is one of a handful of global zones—alongside places like Iran and parts of India—that use a 30-minute offset from UTC.
- How does NDT impact media, TV, and streaming schedules?
- Live broadcasts are often 30 minutes ahead of Atlantic Time plans but still lag Eastern by half an hour, requiring careful attention to regional scheduling differences.
- What’s a quirky fact about NDT’s timekeeping history?
- Newfoundland was once its own dominion and had adopted long before Canadian standardization—its timekeeping independence lives on through NDT.
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