World Timezones

NST to AST-ATLANTIC Converter

Compare AST-ATLANTIC to NST instead
Newfoundland Time2:05 amFri, Jun 5
Newfoundland TimeNDT
North America · UTC-2:30
2:05 amFri, Jun 5
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
Atlantic TimeADT
North America · UTC-3
1:35 amFri, Jun 5
11p
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p

Offset

The time difference between Newfoundland Time and Atlantic Time is 0.5 hours.

0.5 hours

Newfoundland Time (NDT) is ahead of Atlantic Time (ADT).

NDT: UTC-2:30

ADT: UTC-3

Both zones are currently observing daylight saving time.

When to schedule

Business-hours overlap: 10 AM–5 PM in Newfoundland Time (9 AM–4 PM in Atlantic Time).

Both teams are in working hours during this window on weekdays.

Suggested time: 1:00 PM Newfoundland Time (12:30 PM Atlantic Time).

This window may shift by an hour during daylight saving time.

Public holidays in 2026

National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.

Canada

  • New Year's DayThu, Jan 1
  • Good FridayFri, Apr 3
  • Victoria DayMon, May 18
  • Canada DayWed, Jul 1
  • Labour DayMon, Sep 7
  • National Day for Truth and ReconciliationWed, Sep 30
  • ThanksgivingMon, Oct 12
  • Christmas DayFri, Dec 25

About these zones

Newfoundland Time is also known as NST, or NDT. To call Canada, dial +1.

Atlantic Time is also known as AST, or ADT. To call Canada, dial +1.

Atlantic Time is approximately 550 miles west of Newfoundland Time.

Quick reference

Full 24-hour conversion table — tap any time to open it in the converter.

NSTAST-ATLANTICDay
12:00 am11:30 pm-1 day
1:00 am12:30 amSame day
2:00 am1:30 amSame day
3:00 am2:30 amSame day
4:00 am3:30 amSame day
5:00 am4:30 amSame day
6:00 am5:30 amSame day
7:00 am6:30 amSame day
8:00 am7:30 amSame day
9:00 am8:30 amSame day
10:00 am9:30 amSame day
11:00 am10:30 amSame day
12:00 pm11:30 amSame day
1:00 pm12:30 pmSame day
2:00 pm1:30 pmSame day
3:00 pm2:30 pmSame day
4:00 pm3:30 pmSame day
5:00 pm4:30 pmSame day
6:00 pm5:30 pmSame day
7:00 pm6:30 pmSame day
8:00 pm7:30 pmSame day
9:00 pm8:30 pmSame day
10:00 pm9:30 pmSame day
11:00 pm10:30 pmSame day

Daylight saving time

Both Newfoundland Time and Atlantic Time observe daylight saving time and transition on the same date.

Next transition: Sunday, November 1, 2026 (fall back).

Because they transition simultaneously, the offset between these zones remains constant year-round.

See the daylight saving time page for transition dates across every time zone.

Daylight today

Newfoundland Time
Sunrise
5:06 AM
Sunset
8:54 PM
Day length
15h 48m
Atlantic Time
Sunrise
5:31 AM
Sunset
8:56 PM
Day length
15h 25m

Daylight overlap: 14h 53m — 6:01 AM–8:54 PM in Newfoundland Time (5:31 AM–8:24 PM in Atlantic Time). Both locations are in daylight during this window.

Cities in these zones

Cities in Atlantic Time

Browse all cities to see the current local time anywhere.

Airports in these zones

Airports in Atlantic Time

  • YHZ

Related conversions

Common conversions

What is 9:00 am NST in AST-ATLANTIC?
9:00 am NST is 8:30 am AST-ATLANTIC.
What is 12:00 pm NST in AST-ATLANTIC?
12:00 pm NST is 11:30 am AST-ATLANTIC.
What is 12:30 pm NST in AST-ATLANTIC?
12:30 pm NST is 12:00 pm AST-ATLANTIC.
What is 2:00 pm NST in AST-ATLANTIC?
2:00 pm NST is 1:30 pm AST-ATLANTIC.
What is 5:00 pm NST in AST-ATLANTIC?
5:00 pm NST is 4:30 pm AST-ATLANTIC.
What is 11:30 pm NST in AST-ATLANTIC?
11:30 pm NST is 11:00 pm AST-ATLANTIC.