Does it account for Daylight Saving Time?

Yes, our converter uses the IANA timezone database, which includes all current DST rules for every timezone in the world.

UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks. All timezones are defined as offsets from UTC.

Can I compare multiple timezones at once?

Yes, you can add multiple cities or timezones and see the equivalent times side by side.

How many timezones are there in the world?

There are 38 distinct UTC offsets in use, ranging from UTC-12 to UTC+14. This includes half-hour (UTC+5:30 India, UTC+9:30 Australia) and 45-minute offsets (UTC+5:45 Nepal, UTC+8:45 Australia).

What is the International Date Line?

The International Date Line (IDL) runs roughly along the 180° meridian in the Pacific Ocean. When you cross it westward, you gain a day; crossing eastward, you lose a day.

Why do some timezones have 30 or 45 minute offsets?

Countries chose offsets that best matched their solar noon. India uses UTC+5:30 and Nepal uses UTC+5:45 because standard hourly offsets didn't align well with their geography.

Which country has the most timezones?

France has the most (12 timezones) due to overseas territories. Russia spans 11 timezones. The US has 6 (including Hawaii and Alaska).

Sydney to NZDT

+3h

Sydney

AESTSOURCE

Australia · UTC+10:00DST observed

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

NZDT

UTC+13:00☀ DST active

HH03

MM00

15:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Sydney

NZDT

12:00 AM

3:00 AM

2:00 AM

5:00 AM

4:00 AM

7:00 AM

6:00 AM

9:00 AM

8:00 AM

11:00 AM

10:00 AM

1:00 PM

12:00 PM

3:00 PM

2:00 PM

5:00 PM

4:00 PM

7:00 PM

6:00 PM

9:00 PM

8:00 PM

11:00 PM

10:00 PM

1:00 AM+1

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

AEST and NZDT on the World Map

The map below highlights the AEST (Australian Eastern Standard Time) and NZDT (New Zealand Daylight Time) timezone regions across the globe.

AEST Zone

→

NZDT Zone

Explore all world timezones interactively →

AEST – Australian Eastern Standard Time

UTC+10:00

Australian Eastern Standard Time (AEST) covers eastern Australia, 10 hours ahead of UTC.

Countries in AEST

Australia (NSW, VIC, QLD, TAS, ACT)Papua New Guinea

Major Cities in AEST

SydneyMelbourneBrisbaneCanberraHobartGold Coast

Key Facts about AEST

•Queensland does not observe daylight saving time, staying on AEST year-round.
•Sydney and Melbourne switch to AEDT (UTC+11:00) in summer.
•The Australian Securities Exchange (ASX) operates on AEST/AEDT.
•AEST is 15 hours ahead of EST during winter.

Daylight Saving:Yes – switches to AEDT

Learn more about AEST on Wikipedia

NZDT – New Zealand Daylight Time

UTC+13:00

New Zealand Daylight Time (NZDT, UTC+13:00) is New Zealand's summer time zone, one of the earliest offsets in the world.

Countries in NZDT

New Zealand

Major Cities in NZDT

AucklandWellingtonChristchurchHamiltonDunedin

Key Facts about NZDT

•NZDT runs from the last Sunday in September to the first Sunday in April.
•NZDT is UTC+13:00 — one of the earliest time offsets used anywhere.
•New Zealand changes its clocks two to three weeks before Australia.
•The Chatham Islands observe UTC+13:45 during their summer time.

Daylight Saving:Yes – switches to NZDT

Learn more about NZDT on Wikipedia

About Sydney

Wikipedia

Sydney operates on Australian Eastern Standard Time (AEST/AEDT). As Australia's financial capital, Sydney opens global markets at the start of the business day.

Population:5.4 million

Metro:5.4 million

Business Hours:9:00 AM - 5:00 PM AEST

Currency:AUD (A$)

Stock Exchange:ASX (Australian Securities Exchange)

Key Landmarks

Sydney Opera HouseSydney Harbour BridgeBondi BeachDarling HarbourRoyal Botanic Garden

Did You Know?

Sydney is one of the first major cities to welcome the New Year.

Learn more about AEST timezone →

Sydney vs NZDT: Offsets, DST and Best Call Times

Sydney runs on Australian Eastern Standard Time (AEST) at UTC+10:00. NZDT runs on New Zealand Daylight Time (NZDT) at UTC+13:00. That puts Sydney 3 hours ahead of NZDT — a difference of +3h at the current offsets.

In practice, when it is 9:00 AM in Sydney it is 12:00 PM in NZDT. Midnight in Sydney is 3:00 AM in NZDT. Neither zone observes daylight saving time, so the offset between them stays constant all year.

Sydney to NZDT time conversion table

Sydney (AEST)	NZDT (NZDT)	Day
12:00 AM	3:00 AM	same day
6:00 AM	9:00 AM	same day
7:00 AM	10:00 AM	same day
8:00 AM	11:00 AM	same day
9:00 AM	12:00 PM	same day
12:00 PM	3:00 PM	same day
3:00 PM	6:00 PM	same day
5:00 PM	8:00 PM	same day
6:00 PM	9:00 PM	same day
9:00 PM	12:00 AM	next day

Why people convert Sydney to NZDT time

Scheduling a call from Sydney to NZDT: a 10:00 AM start in Sydney lands at 1:00 PM in NZDT, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both Sydney and NZDT are inside the 9-to-5 working day between 9:00 AM and 2:00 PM AEST time (12:00 PM–5:00 PM NZDT). That is roughly 5 hours of usable overlap.
Coordinating a Sydney-based team with NZDT contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.

Always state the zone abbreviation, not just the hour. "3:00 PM AEST" is unambiguous; "3 PM" across a +3h gap is not.
Block 9:00 AM–2:00 PM AEST as the recurring meeting window if you work primarily from Sydney and need NZDT colleagues present.
Sydney: Clocks spring forward on Sat, Oct 3, 2026. Re-check this page after that date because the offset changes and so does the +3h gap.

About AEST (Australian Eastern Standard Time)

Australian Eastern Standard Time (AEST) is used in the eastern states of Australia including New South Wales, Victoria, Queensland, Tasmania, and the ACT. During summer (October to April), NSW, VIC, TAS, and ACT switch to Australian Eastern Daylight Time (AEDT, UTC+11:00), while Queensland remains on AEST year-round.

About NZDT (New Zealand Daylight Time)

New Zealand Daylight Time (NZDT) is the summer time zone for New Zealand, one hour ahead of New Zealand Standard Time (NZST, UTC+12:00). It runs from the last Sunday in September to the first Sunday in April, so New Zealand shifts a week or two earlier in spring than Australia. At UTC+13:00, NZDT is among the earliest offsets in the world — only Samoa, Tonga and parts of Kiribati run further ahead at certain times of year. Auckland and Wellington are 13 hours ahead of UTC during NZDT, 12 hours ahead of Sydney, and 18 hours ahead of New York. The Chatham Islands, 45 minutes further east, move to UTC+13:45.

Best time to call between Sydney and NZDT

Both Sydney and NZDT sit inside the 9 AM – 5 PM working day between 9:00 AM–2:00 PM AEST, which is 12:00 PM–5:00 PM NZDT. That gives roughly 5 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

Sydney and NZDT share 5 hours of working-hours overlap (9:00 AM–2:00 PM AEST), so scheduling a live meeting is straightforward.

Sydney is 3 hours ahead of NZDT (AEST UTC+10:00 → NZDT UTC+13:00). The shared working window is 9:00 AM–2:00 PM AEST. Remember to re-check around daylight-saving transitions.

🕐 Daylight Saving Time Info

Sydney

❄ Currently in Standard Time

Standard: UTC+10:00 · DST: UTC+11:00

Clocks spring forward on Sat, Oct 3, 2026

NZDT

☀ Currently in DST

Standard: UTC+12:00 · DST: UTC+13:00

Clocks fall back on Sat, Apr 3, 2027

⚠ These locations are currently in different DST states, so the time difference may change when clocks adjust.

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 Sydney and NZDT?

Sydney (AEST, UTC+10:00) is 3 hours ahead of NZDT (NZDT, UTC+13:00). The gap is currently +3h.

How do I convert Sydney time to NZDT time?

Add +3h to Sydney local time. For example, 9:00 AM in Sydney is 12:00 PM in NZDT.

What time is it in NZDT right now?

NZDT uses NZDT at UTC+13:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +3h offset from Sydney.

What is the best time to call NZDT from Sydney?

Call between 9:00 AM and 2:00 PM AEST — that maps to 12:00 PM–5:00 PM NZDT and keeps both parties inside the working day.

Which is ahead, Sydney or NZDT?

Sydney is 3 hours ahead of NZDT. When it is 12:00 PM in Sydney it is 3:00 PM in NZDT.

Do Sydney and NZDT use different time zones?

Sydney (Australia) uses AEST at UTC+10:00, while NZDT uses NZDT at UTC+13:00. The IANA identifiers are Australia/Sydney and Pacific/Auckland.

Does daylight saving time affect the Sydney–NZDT difference?

Neither zone observes daylight saving time, so the +3h offset between Sydney and NZDT is fixed all year.

Which other cities share Sydney's time zone?

AEST also covers Sydney, Melbourne, Brisbane, Canberra, Hobart, Gold Coast.

Which countries use AEST, Sydney's zone?

AEST is used in Australia (NSW, VIC, QLD, TAS, ACT), Papua New Guinea.

Is there a day difference between Sydney and NZDT?

Not normally. The +3h gap only pushes the date over for late-evening times.

What is the time difference between Sydney and NZDT?

NZDT is +3h from Sydney.

What timezone is Sydney in?

Sydney operates on Australian Eastern Standard Time (AEST/AEDT). As Australia's financial capital, Sydney opens global markets at the start of the business day.