Auckland to London
-12hAuckland
NZDTSOURCELondon
BSTGreen rows indicate typical business hours (9 AM - 5 PM)
NZDT and BST on the World Map
The map below highlights the NZDT (New Zealand Standard Time) and BST (Greenwich Mean Time) timezone regions across the globe.
NZST – New Zealand Standard Time
UTC+12:00New Zealand Standard Time (NZST) is the time zone for New Zealand, 12 hours ahead of UTC.
- •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).
GMT – Greenwich Mean Time
UTC+00:00Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory in Greenwich, London. It is the same as UTC+00:00.
- •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.
About Auckland
WikipediaAuckland operates on New Zealand Standard Time (NZST), UTC+12. As the first major city to see each day, Auckland opens global business ahead of all other markets.
Auckland is the first major city to see the sunrise each day (along with cities further east).
About London
WikipediaLondon, where Greenwich Mean Time (GMT) originates, is the world's leading financial center alongside New York. The city bridges European and American business hours.
Big Ben is actually the name of the bell inside the Elizabeth Tower, not the tower itself.
Everything You Need to Know About Auckland and London Time
Auckland runs on New Zealand Daylight Time (NZDT) at UTC+13:00, currently observing daylight saving time. London runs on British Summer Time (BST) at UTC+01:00, also currently on daylight saving time. That puts Auckland 12 hours behind London — a difference of -12h at the current offsets.
In practice, when it is 9:00 AM in Auckland it is 9:00 PM in London on the previous day. Midnight in Auckland is 12:00 PM in London. Because both zones shift for daylight saving, the gap between them only changes during the few weeks each year when their transition dates differ.
Auckland to London time conversion table
| Auckland (NZDT) | London (BST) | Day |
|---|---|---|
| 12:00 AM | 12:00 PM | previous day |
| 6:00 AM | 6:00 PM | previous day |
| 7:00 AM | 7:00 PM | previous day |
| 8:00 AM | 8:00 PM | previous day |
| 9:00 AM | 9:00 PM | previous day |
| 12:00 PM | 12:00 AM | same day |
| 3:00 PM | 3:00 AM | same day |
| 5:00 PM | 5:00 AM | same day |
| 6:00 PM | 6:00 AM | same day |
| 9:00 PM | 9:00 AM | same day |
Why people convert Auckland to London time
- Scheduling a call from Auckland to London: a 10:00 AM start in Auckland lands at 10:00 PM in London the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -12h gap: Auckland and London 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 London is 9:00 PM in Auckland.
- Coordinating a Auckland-based team with London 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 NZDT" is unambiguous; "3 PM" across a -12h gap is not.
- With a -12h gap there is no shared 9-to-5 window, so alternate the early start: one week Auckland takes the early slot, the next week London does.
- Auckland: Clocks fall back on Sat, Apr 3, 2027. Re-check this page after that date because the offset changes and so does the -12h gap.
- London: Clocks fall back on Sun, Oct 25, 2026. Any meeting series spanning that date will shift by an hour in local time.
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 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.
Best time to call between Auckland and London
With a -12h offset there is no overlap inside a normal 9 AM – 5 PM day. London opens at 9:00 AM BST, which is 9:00 PM in Auckland, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
Auckland and London have no shared working hours because of the -12h gap. Teams need to alternate early starts or rely on asynchronous handovers.
Auckland is 12 hours behind London (NZDT UTC+13:00 → BST UTC+01:00). 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
Auckland
☀ Currently in DST
Standard: UTC+12:00 · DST: UTC+13:00
Clocks fall back on Sat, Apr 3, 2027
London
☀ Currently in DST
Standard: UTC+00:00 · DST: UTC+01:00
Clocks fall back on Sun, Oct 25, 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 Auckland and London?
Auckland (NZDT, UTC+13:00) is 12 hours behind London (BST, UTC+01:00). The gap is currently -12h.
How do I convert Auckland time to London time?
Add -12h to Auckland local time. For example, 9:00 AM in Auckland is 9:00 PM in London (previous day).
What time is it in London right now?
London uses BST at UTC+01:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -12h offset from Auckland.
What is the best time to call London from Auckland?
There is no shared working-hours window because of the -12h gap. The closest option is 1:00 PM in Auckland, which is 1:00 AM in London.
Which is behind, Auckland or London?
Auckland is 12 hours behind London. When it is 12:00 PM in Auckland it is 12:00 AM in London.
Do Auckland and London use different time zones?
Auckland (New Zealand) uses NZDT at UTC+13:00, while London (UK) uses BST at UTC+01:00. The IANA identifiers are Pacific/Auckland and Europe/London.
Does daylight saving time affect the Auckland–London difference?
Both zones observe DST, so the difference stays at -12h for most of the year and only changes during the weeks when their transition dates do not line up.
Which other cities share Auckland's time zone?
NZDT also covers Auckland, Wellington, Christchurch, Hamilton, Dunedin.
Which countries use NZDT, Auckland's zone?
NZDT is used in New Zealand.
Is there a day difference between Auckland and London?
Sometimes. The -12h gap is large enough that 8:00 PM or later in Auckland already falls on the in London.
What is the time difference between Auckland and London?
London is -12h from Auckland.
What timezone is Auckland in?
Auckland operates on New Zealand Standard Time (NZST), UTC+12. As the first major city to see each day, Auckland opens global business ahead of all other markets.
What timezone is London in?
London, where Greenwich Mean Time (GMT) originates, is the world's leading financial center alongside New York. The city bridges European and American business hours.
What are the business hours in Auckland?
Standard business hours in Auckland are 9:00 AM - 5:00 PM NZST.
What are the business hours in London?
Standard business hours in London are 9:00 AM - 5:00 PM GMT.
What is the best time to schedule a call between Auckland and London?
The best overlap for a call is when both cities are in business hours. Auckland works 9:00 AM - 5:00 PM NZST and London works 9:00 AM - 5:00 PM GMT (-12h difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in Auckland and London?
Auckland uses NZD (NZ$) while London uses GBP (£). Check current exchange rates when planning travel or business between these cities.
How do Auckland and London compare in size?
Auckland has a population of approximately 1.7 million (metro: 1.7 million), while London has approximately 8.8 million (metro: 14.8 million).
What are the major landmarks in Auckland and London?
Auckland is known for Sky Tower, Auckland Harbour Bridge, Auckland War Memorial Museum. London is famous for Big Ben, Tower Bridge, Buckingham Palace.
Do Auckland and London have stock exchanges?
Yes. Auckland has the NZX (New Zealand Exchange) and London has the LSE (London Stock Exchange). The -12h time difference affects trading hour overlaps between these exchanges.
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 GMT timezone?
Major cities in the GMT timezone include London, Dublin, Lisbon, Accra, Reykjavik, Edinburgh, Casablanca, Dakar.
What is the UTC offset for GMT?
Greenwich Mean Time (GMT) is at UTC+00:00. During daylight saving time, it shifts to BST.
What should I know about the GMT timezone?
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.
When is it midnight in Auckland, what time is it in London?
When it is 12:00 AM (midnight) in Auckland (NZST), it is -12h later in London (GMT).
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