London to Auckland
+12hLondon
BSTSOURCEAuckland
NZDTGreen rows indicate typical business hours (9 AM - 5 PM)
BST and NZDT on the World Map
The map below highlights the BST (Greenwich Mean Time) and NZDT (New Zealand Standard Time) timezone regions across the globe.
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.
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).
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.
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).
London to Auckland Time Difference – Complete Guide
London runs on British Summer Time (BST) at UTC+01:00, currently observing daylight saving time. Auckland runs on New Zealand Daylight Time (NZDT) at UTC+13:00, also currently on daylight saving time. That puts London 12 hours ahead of Auckland — a difference of +12h at the current offsets.
In practice, when it is 9:00 AM in London it is 9:00 PM in Auckland. Midnight in London is 12:00 PM in Auckland. Because both zones shift for daylight saving, the gap between them only changes during the few weeks each year when their transition dates differ.
London to Auckland time conversion table
| London (BST) | Auckland (NZDT) | Day |
|---|---|---|
| 12:00 AM | 12:00 PM | same day |
| 6:00 AM | 6:00 PM | same day |
| 7:00 AM | 7:00 PM | same day |
| 8:00 AM | 8:00 PM | same day |
| 9:00 AM | 9:00 PM | same day |
| 12:00 PM | 12:00 AM | next day |
| 3:00 PM | 3:00 AM | next day |
| 5:00 PM | 5:00 AM | next day |
| 6:00 PM | 6:00 AM | next day |
| 9:00 PM | 9:00 AM | next day |
Why people convert London to Auckland time
- Scheduling a call from London to Auckland: a 10:00 AM start in London lands at 10:00 PM in Auckland, so you can confirm the slot without doing the arithmetic yourself.
- Handling a +12h gap: London and Auckland 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 Auckland is 9:00 PM in London.
- Booking travel or deliveries: tracking Auckland local time against London keeps pickup windows and arrival estimates honest across the +12h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM BST" 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 London takes the early slot, the next week Auckland does.
- London: Clocks fall back on Sun, Oct 25, 2026. Re-check this page after that date because the offset changes and so does the +12h gap.
- Auckland: Clocks fall back on Sat, Apr 3, 2027. Any meeting series spanning that date will shift by an hour in local time.
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 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).
Best time to call between London and Auckland
With a +12h offset there is no overlap inside a normal 9 AM – 5 PM day. Auckland opens at 9:00 AM NZDT, which is 9:00 PM in London, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
London and Auckland have no shared working hours because of the +12h gap. Teams need to alternate early starts or rely on asynchronous handovers.
London is 12 hours ahead of Auckland (BST UTC+01:00 → NZDT UTC+13:00). 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
London
☀ Currently in DST
Standard: UTC+00:00 · DST: UTC+01:00
Clocks fall back on Sun, Oct 25, 2026
Auckland
☀ Currently in DST
Standard: UTC+12:00 · DST: UTC+13:00
Clocks fall back on Sat, Apr 3, 2027
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 London and Auckland?
London (BST, UTC+01:00) is 12 hours ahead of Auckland (NZDT, UTC+13:00). The gap is currently +12h.
How do I convert London time to Auckland time?
Add +12h to London local time. For example, 9:00 AM in London is 9:00 PM in Auckland.
What time is it in Auckland right now?
Auckland 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 +12h offset from London.
What is the best time to call Auckland from London?
There is no shared working-hours window because of the +12h gap. The closest option is 1:00 PM in London, which is 1:00 AM in Auckland.
Which is ahead, London or Auckland?
London is 12 hours ahead of Auckland. When it is 12:00 PM in London it is 12:00 AM in Auckland.
Do London and Auckland use different time zones?
London (UK) uses BST at UTC+01:00, while Auckland (New Zealand) uses NZDT at UTC+13:00. The IANA identifiers are Europe/London and Pacific/Auckland.
Does daylight saving time affect the London–Auckland 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 London's time zone?
BST also covers London, Dublin, Lisbon, Accra, Reykjavik, Edinburgh, Casablanca, Dakar and 5 more.
Which countries use BST, London's zone?
BST is used in United Kingdom, Ireland, Iceland, Portugal (mainland), Ghana, Senegal, Mali, Mauritania and 7 more.
Is there a day difference between London and Auckland?
Sometimes. The +12h gap is large enough that 8:00 PM or later in London already falls on the next day in Auckland.
What is the time difference between London and Auckland?
Auckland is +12h from London.
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 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 are the business hours in London?
Standard business hours in London are 9:00 AM - 5:00 PM GMT.
What are the business hours in Auckland?
Standard business hours in Auckland are 9:00 AM - 5:00 PM NZST.
What is the best time to schedule a call between London and Auckland?
The best overlap for a call is when both cities are in business hours. London works 9:00 AM - 5:00 PM GMT and Auckland works 9:00 AM - 5:00 PM NZST (+12h difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in London and Auckland?
London uses GBP (£) while Auckland uses NZD (NZ$). Check current exchange rates when planning travel or business between these cities.
How do London and Auckland compare in size?
London has a population of approximately 8.8 million (metro: 14.8 million), while Auckland has approximately 1.7 million (metro: 1.7 million).
What are the major landmarks in London and Auckland?
London is known for Big Ben, Tower Bridge, Buckingham Palace. Auckland is famous for Sky Tower, Auckland Harbour Bridge, Auckland War Memorial Museum.
Do London and Auckland have stock exchanges?
Yes. London has the LSE (London Stock Exchange) and Auckland has the NZX (New Zealand Exchange). The +12h time difference affects trading hour overlaps between these exchanges.
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.
Which cities are in the NZST timezone?
Major cities in the NZST timezone include Auckland, Wellington, Christchurch, Hamilton, Dunedin.
What is the UTC offset for NZST?
New Zealand Standard Time (NZST) is at UTC+12:00. During daylight saving time, it shifts to NZDT.
What should I know about the NZST timezone?
New Zealand is among the first major countries to see a new day. NZST is 17 hours ahead of EST.
When is it midnight in London, what time is it in Auckland?
When it is 12:00 AM (midnight) in London (GMT), it is +12h later in Auckland (NZST).
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