NZST to London
-11hNZST
NZSTSOURCELondon
BSTGreen rows indicate typical business hours (9 AM - 5 PM)
NZST and BST on the World Map
The map below highlights the NZST (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 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.
Comparing Time Zones: NZST and London
NZST runs on New Zealand Standard Time (NZST) at UTC+12:00. London runs on British Summer Time (BST) at UTC+01:00, also currently on daylight saving time. That puts NZST 11 hours behind London — a difference of -11h at the current offsets.
In practice, when it is 9:00 AM in NZST it is 10:00 PM in London on the previous day. Midnight in NZST is 1:00 PM in London.London observes daylight saving time while NZST does not, so the gap narrows or widens by an hour part of the year.
NZST to London time conversion table
| NZST (NZST) | London (BST) | Day |
|---|---|---|
| 12:00 AM | 1:00 PM | previous day |
| 6:00 AM | 7:00 PM | previous day |
| 7:00 AM | 8:00 PM | previous day |
| 8:00 AM | 9:00 PM | previous day |
| 9:00 AM | 10:00 PM | previous day |
| 12:00 PM | 1:00 AM | same day |
| 3:00 PM | 4:00 AM | same day |
| 5:00 PM | 6:00 AM | same day |
| 6:00 PM | 7:00 AM | same day |
| 9:00 PM | 10:00 AM | same day |
Why people convert NZST to London time
- Scheduling a call from NZST to London: a 10:00 AM start in NZST lands at 11:00 PM in London the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -11h gap: NZST 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 10:00 PM in NZST.
- Booking travel or deliveries: tracking London local time against NZST keeps pickup windows and arrival estimates honest across the -11h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM NZST" 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 NZST takes the early slot, the next week London does.
- 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 NZST and London
With a -11h offset there is no overlap inside a normal 9 AM – 5 PM day. London opens at 9:00 AM BST, which is 10:00 PM in NZST, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
NZST and London have no shared working hours because of the -11h gap. Teams need to alternate early starts or rely on asynchronous handovers.
NZST is 11 hours behind London (NZST UTC+12:00 → 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
NZST
☀ 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 NZST and London?
NZST (NZST, UTC+12:00) is 11 hours behind London (BST, UTC+01:00). The gap is currently -11h.
How do I convert NZST time to London time?
Add -11h to NZST local time. For example, 9:00 AM in NZST is 10:00 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 -11h offset from NZST.
What is the best time to call London from NZST?
There is no shared working-hours window because of the -11h gap. The closest option is 1:00 PM in NZST, which is 2:00 AM in London.
Which is behind, NZST or London?
NZST is 11 hours behind London. When it is 12:00 PM in NZST it is 1:00 AM in London.
Do NZST and London use different time zones?
NZST uses NZST at UTC+12:00, while London (UK) uses BST at UTC+01:00. The IANA identifiers are Pacific/Auckland and Europe/London.
Does daylight saving time affect the NZST–London difference?
Yes at the moment: London is on daylight saving time and NZST is not, so the -11h gap shifts by an hour when exactly one of them changes clocks.
Which other cities share NZST's time zone?
NZST also covers Auckland, Wellington, Christchurch, Hamilton, Dunedin.
Which countries use NZST, NZST's zone?
NZST is used in New Zealand.
Is there a day difference between NZST and London?
Not normally. The -11h gap only pushes the date over the previous day.
What is the time difference between NZST and London?
London is -11h from NZST.
What timezone is NZST in?
NZST operates on its local timezone.
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 London?
Standard business hours in London are 9:00 AM - 5:00 PM GMT.
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 NZST, what time is it in London?
When it is 12:00 AM (midnight) in NZST (NZST), it is -11h later in London (GMT).
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