Does it handle Daylight Saving Time?

Yes, the tool automatically adjusts for Daylight Saving Time based on the specific date you select, ensuring accurate conversions year-round.

Can I add multiple cities?

Yes, you can add as many cities as you need to the dashboard to compare times across your entire global network simultaneously.

GMT to AEDT

+11h

GMT

GMTSOURCE

UTC+01:00☀ DST active

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

AEDT

UTC+10:00DST observed

HH11

MM00

23:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

GMT

AEDT

12:00 AM

9:00 AM

2:00 AM

11:00 AM

4:00 AM

1:00 PM

6:00 AM

3:00 PM

8:00 AM

5:00 PM

10:00 AM

7:00 PM

12:00 PM

9:00 PM

2:00 PM

11:00 PM

4:00 PM

1:00 AM+1

6:00 PM

3:00 AM+1

8:00 PM

5:00 AM+1

10:00 PM

7:00 AM+1

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

GMT and AEDT on the World Map

The map below highlights the GMT (Greenwich Mean Time) and AEDT (Australian Eastern Daylight Time) timezone regions across the globe.

GMT Zone

→

AEDT Zone

Explore all world timezones interactively →

GMT – Greenwich Mean Time

UTC+00:00

Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory in Greenwich, London. It is the same as UTC+00:00.

Countries in GMT

United KingdomIrelandIcelandPortugal (mainland)GhanaSenegalMaliMauritaniaGambiaGuineaSierra LeoneLiberiaIvory CoastBurkina FasoMorocco (historically)

Major Cities in GMT

LondonDublinLisbonAccraReykjavikEdinburghCasablancaDakarBamakoAbidjanConakryFreetownMonrovia

Key Facts about GMT

•GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London.
•The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
•GMT and UTC are often used interchangeably, but UTC is based on atomic clocks.
•Iceland uses GMT year-round and never observes daylight saving time.
•The UK switches from GMT to BST (British Summer Time) in late March each year.

Daylight Saving:Yes – switches to BST

Learn more about GMT on Wikipedia

AEDT – Australian Eastern Daylight Time

UTC+11:00

Australian Eastern Daylight Time (AEDT, UTC+11:00) is the daylight saving period in south-eastern Australia, from October to April.

Countries in AEDT

Australia (NSW, Victoria, Tasmania, ACT)

Major Cities in AEDT

SydneyMelbourneCanberraHobartNewcastle

Key Facts about AEDT

•AEDT runs from the first Sunday in October to the first Sunday in April.
•AEDT is one hour ahead of Australian Eastern Standard Time (AEST).
•Queensland does not observe daylight saving, so Brisbane stays on AEST.
•During AEDT, Sydney is 16 hours ahead of New York and 11 hours ahead of UTC.

Daylight Saving:Yes – switches to AEDT

Learn more about AEDT on Wikipedia

Understanding the +11h Gap: GMT vs AEDT

GMT runs on Greenwich Mean Time (GMT) at UTC+00:00. AEDT runs on Australian Eastern Daylight Time (AEDT) at UTC+11:00. That puts GMT 11 hours ahead of AEDT — a difference of +11h at the current offsets.

In practice, when it is 9:00 AM in GMT it is 8:00 PM in AEDT. Midnight in GMT is 11:00 AM in AEDT. Neither zone observes daylight saving time, so the offset between them stays constant all year.

GMT to AEDT time conversion table

GMT (GMT)	AEDT (AEDT)	Day
12:00 AM	11:00 AM	same day
6:00 AM	5:00 PM	same day
7:00 AM	6:00 PM	same day
8:00 AM	7:00 PM	same day
9:00 AM	8:00 PM	same day
12:00 PM	11:00 PM	same day
3:00 PM	2:00 AM	next day
5:00 PM	4:00 AM	next day
6:00 PM	5:00 AM	next day
9:00 PM	8:00 AM	next day

Why people convert GMT to AEDT time

Scheduling a call from GMT to AEDT: a 10:00 AM start in GMT lands at 9:00 PM in AEDT, so you can confirm the slot without doing the arithmetic yourself.
Handling a +11h gap: GMT and AEDT 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 AEDT is 8:00 PM in GMT.
Keeping family and friends in sync: knowing that 8:00 PM in GMT is 7:00 AM in AEDT makes it easy to avoid calling at 3 AM.

Always state the zone abbreviation, not just the hour. "3:00 PM GMT" is unambiguous; "3 PM" across a +11h gap is not.
With a +11h gap there is no shared 9-to-5 window, so alternate the early start: one week GMT takes the early slot, the next week AEDT does.

About GMT (Greenwich Mean Time)

Greenwich Mean Time (GMT) is the clock time at the Royal Observatory in Greenwich, London, which sits on the Prime Meridian (0° longitude). GMT serves as the reference point from which all other time zones are calculated. The United Kingdom uses GMT during winter months and switches to British Summer Time (BST, UTC+01:00) from late March to late October. Several West African nations use GMT year-round. GMT is often used interchangeably with UTC (Coordinated Universal Time), although technically they are different – UTC is based on atomic clocks while GMT is based on Earth's rotation.

About AEDT (Australian Eastern Daylight Time)

Australian Eastern Daylight Time (AEDT) is the daylight saving period in south-eastern Australia, one hour ahead of Australian Eastern Standard Time (AEST, UTC+10:00). Because Australia is in the southern hemisphere, AEDT runs through the summer — from the first Sunday in October to the first Sunday in April — which is almost exactly the reverse of the European and North American schedules. New South Wales, Victoria, Tasmania and the Australian Capital Territory observe it; Queensland and the Northern Territory do not, so Brisbane stays on AEST year round while Sydney moves to AEDT. During AEDT, Sydney is 11 hours ahead of UTC and 16 hours ahead of New York.

Best time to call between GMT and AEDT

With a +11h offset there is no overlap inside a normal 9 AM – 5 PM day. AEDT opens at 9:00 AM AEDT, which is 8:00 PM in GMT, so real-time calls need an early-morning or late-evening slot on one side.

Business hours overlap

GMT and AEDT have no shared working hours because of the +11h gap. Teams need to alternate early starts or rely on asynchronous handovers.

GMT is 11 hours ahead of AEDT (GMT UTC+00:00 → AEDT UTC+11:00). 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

GMT

☀ Currently in DST

Standard: UTC+00:00 · DST: UTC+01:00

Clocks fall back on Sun, Oct 25, 2026

AEDT

❄ Currently in Standard Time

Standard: UTC+10:00 · DST: UTC+11:00

Clocks spring forward on Sat, Oct 3, 2026

⚠ 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 GMT and AEDT?

GMT (GMT, UTC+00:00) is 11 hours ahead of AEDT (AEDT, UTC+11:00). The gap is currently +11h.

How do I convert GMT time to AEDT time?

Add +11h to GMT local time. For example, 9:00 AM in GMT is 8:00 PM in AEDT.

What time is it in AEDT right now?

AEDT uses AEDT at UTC+11:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +11h offset from GMT.

What is the best time to call AEDT from GMT?

There is no shared working-hours window because of the +11h gap. The closest option is 1:00 PM in GMT, which is 12:00 AM in AEDT.

Which is ahead, GMT or AEDT?

GMT is 11 hours ahead of AEDT. When it is 12:00 PM in GMT it is 11:00 PM in AEDT.

Does daylight saving time affect the GMT–AEDT difference?

Neither zone observes daylight saving time, so the +11h offset between GMT and AEDT is fixed all year.

Which other cities share GMT's time zone?

GMT also covers London, Dublin, Lisbon, Accra, Reykjavik, Edinburgh, Casablanca, Dakar and 5 more.

Which countries use GMT, GMT's zone?

GMT is used in United Kingdom, Ireland, Iceland, Portugal (mainland), Ghana, Senegal, Mali, Mauritania and 7 more.

Is there a day difference between GMT and AEDT?

Not normally. The +11h gap only pushes the date over for late-evening times.

What is the time difference between GMT and AEDT?

AEDT is +11h from GMT.

What timezone is GMT in?

GMT operates on its local timezone.

What timezone is AEDT in?

AEDT operates on its local timezone.

Which countries use GMT (Greenwich Mean Time)?

GMT is used in United Kingdom, Ireland, Iceland, Portugal (mainland), Ghana, Senegal, and 9 more countries.

Does GMT observe daylight saving time?

Yes, GMT switches to BST during summer months.

What are some interesting facts about GMT?

GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London. The Royal Observatory in Greenwich has been the reference point for GMT since 1884.