Инструменты Intosoft

New Zealand to AST

-17h

New Zealand

NZDTSOURCE
UTC+13:00☀ DST active
HH12
:
MM00
  
12:00 (24-hr)
12 AM6 AM12 PM6 PM12 AM

AST

AST
UTC-03:00☀ DST active
HH07
:
MM00
  
(previous day)19:00 (24-hr)
12 AM6 AM12 PM6 PM12 AM
New Zealand
AST
12:00 AM
8:00 AM-1
2:00 AM
10:00 AM-1
4:00 AM
12:00 PM-1
6:00 AM
2:00 PM-1
8:00 AM
4:00 PM-1
10:00 AM
6:00 PM-1
12:00 PM
8:00 PM-1
2:00 PM
10:00 PM-1
4:00 PM
12:00 AM
6:00 PM
2:00 AM
8:00 PM
4:00 AM
10:00 PM
6:00 AM

Green rows indicate typical business hours (9 AM - 5 PM)

NZDT and AST on the World Map

The map below highlights the NZDT (New Zealand Standard Time) and AST (Atlantic Standard Time) timezone regions across the globe.

NZDTASTAucklandWellingtonChristchurchHamiltonHalifaxSan JuanSanto DomingoCaracas
NZDT Zone
→
AST Zone

Explore all world timezones interactively →

NZST – New Zealand Standard Time

UTC+12:00

New Zealand Standard Time (NZST) is the time zone for New Zealand, 12 hours ahead of UTC.

Countries in NZST
New Zealand
Major Cities in NZST
AucklandWellingtonChristchurchHamiltonDunedin
Key Facts about NZST
  • •New Zealand is among the first major countries to see a new day.
  • •NZST is 17 hours ahead of EST.
  • •New Zealand observes DST from September to April (Southern Hemisphere summer).
Daylight Saving:Yes – switches to NZDT
Learn more about NZST on Wikipedia

AST – Atlantic Standard Time

UTC-04:00

Atlantic Standard Time (AST) is the time zone for the Canadian Atlantic provinces and the Caribbean, 4 hours behind UTC.

Countries in AST
Canada (Atlantic provinces)Puerto RicoUS Virgin IslandsDominican RepublicVenezuelaBoliviaBarbadosTrinidad and Tobago
Major Cities in AST
HalifaxSan JuanSanto DomingoCaracasLa PazFrederictonCharlottetown
Key Facts about AST
  • •Puerto Rico uses AST year-round and does not observe DST.
  • •AST is 1 hour ahead of EST.
  • •Halifax, the capital of Nova Scotia, is the largest city in AST Canada.
Daylight Saving:Yes – switches to ADT
Learn more about AST on Wikipedia

New Zealand vs AST: Offsets, DST and Best Call Times

New Zealand runs on New Zealand Daylight Time (NZDT) at UTC+13:00, currently observing daylight saving time. AST runs on Atlantic Standard Time (AST) at UTC-04:00. That puts New Zealand 17 hours behind AST — a difference of -17h at the current offsets.

In practice, when it is 9:00 AM in New Zealand it is 4:00 PM in AST on the previous day. Midnight in New Zealand is 7:00 AM in AST.New Zealand observes daylight saving time while AST does not, so the gap narrows or widens by an hour part of the year.

New Zealand to AST time conversion table

New Zealand (NZDT)AST (AST)Day
12:00 AM7:00 AMprevious day
6:00 AM1:00 PMprevious day
7:00 AM2:00 PMprevious day
8:00 AM3:00 PMprevious day
9:00 AM4:00 PMprevious day
12:00 PM7:00 PMprevious day
3:00 PM10:00 PMprevious day
5:00 PM12:00 AMsame day
6:00 PM1:00 AMsame day
9:00 PM4:00 AMsame day

Why people convert New Zealand to AST time

  • Scheduling a call from New Zealand to AST: a 10:00 AM start in New Zealand lands at 5:00 PM in AST the previous day, so you can confirm the slot without doing the arithmetic yourself.
  • Handling a -17h gap: New Zealand and AST have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in AST is 4:00 PM in New Zealand.
  • Booking travel or deliveries: tracking AST local time against New Zealand keeps pickup windows and arrival estimates honest across the -17h offset.
  • Always state the zone abbreviation, not just the hour. "3:00 PM NZDT" is unambiguous; "3 PM" across a -17h gap is not.
  • With a -17h gap there is no shared 9-to-5 window, so alternate the early start: one week New Zealand takes the early slot, the next week AST does.
  • New Zealand: Clocks fall back on Sat, Apr 3, 2027. Re-check this page after that date because the offset changes and so does the -17h gap.

About NZST (New Zealand Standard Time)

New Zealand Standard Time (NZST) is the standard time zone for New Zealand and its dependencies. New Zealand is among the first countries to see a new calendar day. During summer (September to April), clocks advance to New Zealand Daylight Time (NZDT, UTC+13:00).

About AST (Atlantic Standard Time)

Atlantic Standard Time (AST) covers Canada's Atlantic provinces (Nova Scotia, New Brunswick, Prince Edward Island, and most of Labrador), as well as several Caribbean nations. Puerto Rico and the US Virgin Islands use AST year-round without daylight saving time. The Canadian provinces switch to Atlantic Daylight Time (ADT) in summer.

Best time to call between New Zealand and AST

With a -17h offset there is no overlap inside a normal 9 AM – 5 PM day. AST opens at 9:00 AM AST, which is 4:00 PM in New Zealand, so real-time calls need an early-morning or late-evening slot on one side.

Business hours overlap

New Zealand and AST have no shared working hours because of the -17h gap. Teams need to alternate early starts or rely on asynchronous handovers.

New Zealand is 17 hours behind AST (NZDT UTC+13:00 → AST UTC-04:00). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.

🕐 Daylight Saving Time Info

New Zealand

☀ Currently in DST

Standard: UTC+12:00 · DST: UTC+13:00

Clocks fall back on Sat, Apr 3, 2027

AST

☀ Currently in DST

Standard: UTC-04:00 · DST: UTC-03:00

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:

⏳
History of Timekeeping
From sundials to atomic clocks - 5000 years of measuring time
🌍
How Time Zones Work
UTC, offsets, and why zones don't follow straight lines
☀️
Daylight Saving Time
DST dates, which countries observe it, and the ongoing debate

Frequently Asked Questions

What is the time difference between New Zealand and AST?

New Zealand (NZDT, UTC+13:00) is 17 hours behind AST (AST, UTC-04:00). The gap is currently -17h.

How do I convert New Zealand time to AST time?

Add -17h to New Zealand local time. For example, 9:00 AM in New Zealand is 4:00 PM in AST (previous day).

What time is it in AST right now?

AST uses AST at UTC-04:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -17h offset from New Zealand.

What is the best time to call AST from New Zealand?

There is no shared working-hours window because of the -17h gap. The closest option is 1:00 PM in New Zealand, which is 8:00 PM in AST.

Which is behind, New Zealand or AST?

New Zealand is 17 hours behind AST. When it is 12:00 PM in New Zealand it is 7:00 PM in AST.

Do New Zealand and AST use different time zones?

New Zealand (New Zealand) uses NZDT at UTC+13:00, while AST uses AST at UTC-04:00. The IANA identifiers are Pacific/Auckland and America/Halifax.

Does daylight saving time affect the New Zealand–AST difference?

Yes at the moment: New Zealand is on daylight saving time and AST is not, so the -17h gap shifts by an hour when exactly one of them changes clocks.

Which other cities share New Zealand's time zone?

NZDT also covers Auckland, Wellington, Christchurch, Hamilton, Dunedin.

Which countries use NZDT, New Zealand's zone?

NZDT is used in New Zealand.

Is there a day difference between New Zealand and AST?

Sometimes. The -17h gap is large enough that 8:00 PM or later in New Zealand already falls on the in AST.

What is the time difference between New Zealand and AST?

AST is -17h from New Zealand.

What timezone is New Zealand in?

New Zealand operates on its local timezone.

What timezone is AST in?

AST operates on its local timezone.

Which countries use NZST (New Zealand Standard Time)?

NZST is used in New Zealand.

Does NZST observe daylight saving time?

Yes, NZST switches to NZDT during summer months.

What are some interesting facts about NZST?

New Zealand is among the first major countries to see a new day. NZST is 17 hours ahead of EST.

Which cities are in the AST timezone?

Major cities in the AST timezone include Halifax, San Juan, Santo Domingo, Caracas, La Paz, Fredericton, Charlottetown.

What is the UTC offset for AST?

Atlantic Standard Time (AST) is at UTC-04:00. During daylight saving time, it shifts to ADT.

What should I know about the AST timezone?

Puerto Rico uses AST year-round and does not observe DST. AST is 1 hour ahead of EST.

When is it midnight in New Zealand, what time is it in AST?

When it is 12:00 AM (midnight) in New Zealand (NZST), it is -17h later in AST (AST).

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