NST to EDT
-0h 30mNST
NSTSOURCEEDT
EDTGreen rows indicate typical business hours (9 AM - 5 PM)
NST and EDT on the World Map
The map below highlights the NST (Newfoundland Standard Time) and EDT (Eastern Daylight Time) timezone regions across the globe.
NST – Newfoundland Standard Time
UTC-03:30Newfoundland Standard Time (NST) is a unique half-hour offset time zone in Canada, 3.5 hours behind UTC.
- •NST is one of only a few half-hour offset time zones in the world.
- •Newfoundland joined Canada in 1949 and kept its unique time zone.
- •St. John's is the easternmost city in North America.
EDT – Eastern Daylight Time
UTC-04:00Eastern Daylight Time (EDT) is the daylight saving time observed in the Eastern Time Zone, 4 hours behind UTC.
- •EDT is observed from the second Sunday of March to the first Sunday of November.
- •During EDT, the US East Coast is only 4 hours behind London (instead of 5).
- •Not all EST locations switch to EDT – Panama and Jamaica stay on EST year-round.
Time Conversion Guide: NST to EDT
NST runs on Newfoundland Standard Time (NST) at UTC-03:30. EDT runs on Eastern Daylight Time (EDT) at UTC-04:00. That puts NST 30 minutes behind EDT — a difference of -0h 30m at the current offsets.
In practice, when it is 9:00 AM in NST it is 8:30 AM in EDT. Midnight in NST is 11:30 PM in EDT. Neither zone observes daylight saving time, so the offset between them stays constant all year.
NST to EDT time conversion table
| NST (NST) | EDT (EDT) | Day |
|---|---|---|
| 12:00 AM | 11:30 PM | previous day |
| 6:00 AM | 5:30 AM | same day |
| 7:00 AM | 6:30 AM | same day |
| 8:00 AM | 7:30 AM | same day |
| 9:00 AM | 8:30 AM | same day |
| 12:00 PM | 11:30 AM | same day |
| 3:00 PM | 2:30 PM | same day |
| 5:00 PM | 4:30 PM | same day |
| 6:00 PM | 5:30 PM | same day |
| 9:00 PM | 8:30 PM | same day |
Why people convert NST to EDT time
- Scheduling a call from NST to EDT: a 10:00 AM start in NST lands at 9:30 AM in EDT, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both NST and EDT are inside the 9-to-5 working day between 9:30 AM and 5:00 PM NST time (9:00 AM–4:30 PM EDT). That is roughly 7 hours 30 minutes of usable overlap.
- Keeping family and friends in sync: knowing that 8:00 PM in NST is 7:30 PM in EDT makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM NST" is unambiguous; "3 PM" across a -0h 30m gap is not.
- Block 9:30 AM–5:00 PM NST as the recurring meeting window if you work primarily from NST and need EDT colleagues present.
About NST (Newfoundland Standard Time)
Newfoundland Standard Time (NST) is one of the few half-hour offset time zones in the world. It covers the island of Newfoundland in Canada and is 30 minutes ahead of Atlantic Standard Time. This unique offset exists because Newfoundland was an independent country until 1949.
About EDT (Eastern Daylight Time)
Eastern Daylight Time (EDT) is used during the summer months (second Sunday of March to the first Sunday of November) in the Eastern Time Zone. During EDT, clocks are advanced by one hour to take advantage of longer daylight hours. Not all locations in the Eastern Time Zone observe DST – Panama, Jamaica, and most of the Caribbean remain on EST year-round.
Best time to call between NST and EDT
Both NST and EDT sit inside the 9 AM – 5 PM working day between 9:30 AM–5:00 PM NST, which is 9:00 AM–4:30 PM EDT. That gives roughly 7 hours and 30 minutes of shared time — the safest window for a live call or meeting.
Business hours overlap
NST and EDT share 7 hours of working-hours overlap (9:30 AM–5:00 PM NST), so scheduling a live meeting is straightforward.
NST is 30 minutes behind EDT (NST UTC-03:30 → EDT UTC-04:00). The shared working window is 9:30 AM–5:00 PM NST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
NST
☀ Currently in DST
Standard: UTC-03:30 · DST: UTC-02:30
Clocks fall back on Sun, Nov 1, 2026
EDT
☀ Currently in DST
Standard: UTC-05:00 · DST: UTC-04:00
Clocks fall back on Sun, Nov 1, 2026
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between NST and EDT?
NST (NST, UTC-03:30) is 30 minutes behind EDT (EDT, UTC-04:00). The gap is currently -0h 30m.
How do I convert NST time to EDT time?
Add -0h 30m to NST local time. For example, 9:00 AM in NST is 8:30 AM in EDT.
What time is it in EDT right now?
EDT uses EDT at UTC-04:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -0h 30m offset from NST.
What is the best time to call EDT from NST?
Call between 9:30 AM and 5:00 PM NST — that maps to 9:00 AM–4:30 PM EDT and keeps both parties inside the working day.
Which is behind, NST or EDT?
NST is 30 minutes behind EDT. When it is 12:00 PM in NST it is 11:30 AM in EDT.
Does daylight saving time affect the NST–EDT difference?
Neither zone observes daylight saving time, so the -0h 30m offset between NST and EDT is fixed all year.
Which other cities share NST's time zone?
NST also covers St. John's, Corner Brook, Mount Pearl.
Which countries use NST, NST's zone?
NST is used in Canada (Newfoundland).
Is there a day difference between NST and EDT?
Not normally. The -0h 30m gap only pushes the date over the previous day.
What is the time difference between NST and EDT?
EDT is -0h 30m from NST.
What timezone is NST in?
NST operates on its local timezone.
What timezone is EDT in?
EDT operates on its local timezone.
Which countries use NST (Newfoundland Standard Time)?
NST is used in Canada (Newfoundland).
Does NST observe daylight saving time?
Yes, NST switches to NDT during summer months.
What are some interesting facts about NST?
NST is one of only a few half-hour offset time zones in the world. Newfoundland joined Canada in 1949 and kept its unique time zone.
Which cities are in the EDT timezone?
Major cities in the EDT timezone include New York City, Washington D.C., Toronto, Miami, Philadelphia, Atlanta, Boston, Montreal.
What is the UTC offset for EDT?
Eastern Daylight Time (EDT) is at UTC-04:00. During daylight saving time, it shifts to EST.
What should I know about the EDT timezone?
EDT is observed from the second Sunday of March to the first Sunday of November. During EDT, the US East Coast is only 4 hours behind London (instead of 5).
When is it midnight in NST, what time is it in EDT?
When it is 12:00 AM (midnight) in NST (NST), it is -0h 30m later in EDT (EDT).
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See every conversion from NST →·See every conversion from EDT →