NZST to BST
-11hNZST
NZSTSOURCEBST
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 (British Summer 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).
BST – British Summer Time
UTC+01:00British Summer Time (BST, UTC+01:00) is the daylight saving period in the United Kingdom, running from late March to late October.
- •BST runs from the last Sunday in March to the last Sunday in October.
- •BST is exactly one hour ahead of GMT, the UK's standard time.
- •During BST, London is 4 hours ahead of New York while the US is on Eastern Daylight Time.
- •The Isle of Man and the Channel Islands also observe BST.
NZST vs BST: Offsets, DST and Best Call Times
NZST runs on New Zealand Standard Time (NZST) at UTC+12:00. BST runs on British Summer Time (BST) at UTC+01:00. That puts NZST 11 hours behind BST — a difference of -11h at the current offsets.
In practice, when it is 9:00 AM in NZST it is 10:00 PM in BST on the previous day. Midnight in NZST is 1:00 PM in BST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
NZST to BST time conversion table
| NZST (NZST) | BST (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 BST time
- Scheduling a call from NZST to BST: a 10:00 AM start in NZST lands at 11:00 PM in BST the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -11h gap: NZST and BST 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 BST is 10:00 PM in NZST.
- Watching a live event or market open: NZST viewers need 10:00 PM in BST to catch a 9:00 AM start there, and 11:00 AM if the event is anchored to NZST.
- 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 BST does.
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 BST (British Summer Time)
British Summer Time (BST) is the daylight saving period in the United Kingdom, when clocks move one hour forward from Greenwich Mean Time (GMT, UTC+00:00) to UTC+01:00. It runs from the last Sunday in March to the last Sunday in October. England, Scotland, Wales and Northern Ireland all follow it, along with the Isle of Man and the Channel Islands of Jersey and Guernsey. During BST, London is one hour ahead of UTC, four hours ahead of New York on Eastern Daylight Time, and five hours ahead of New York once the United States returns to Eastern Standard Time in November. BST is also used to abbreviate Bangladesh Standard Time (UTC+06:00), which is listed separately on this site.
Best time to call between NZST and BST
With a -11h offset there is no overlap inside a normal 9 AM – 5 PM day. BST 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 BST 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 BST (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
BST
☀ 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 BST?
NZST (NZST, UTC+12:00) is 11 hours behind BST (BST, UTC+01:00). The gap is currently -11h.
How do I convert NZST time to BST time?
Add -11h to NZST local time. For example, 9:00 AM in NZST is 10:00 PM in BST (previous day).
What time is it in BST right now?
BST 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 BST 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 BST.
Which is behind, NZST or BST?
NZST is 11 hours behind BST. When it is 12:00 PM in NZST it is 1:00 AM in BST.
Does daylight saving time affect the NZST–BST difference?
Neither zone observes daylight saving time, so the -11h offset between NZST and BST is fixed all year.
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 BST?
Not normally. The -11h gap only pushes the date over the previous day.
What is the time difference between NZST and BST?
BST is -11h from NZST.
What timezone is NZST in?
NZST operates on its local timezone.
What timezone is BST in?
BST operates on its local timezone.
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 BST timezone?
Major cities in the BST timezone include London, Birmingham, Manchester, Glasgow, Edinburgh, Cardiff, Belfast, Liverpool.
What is the UTC offset for BST?
British Summer Time (BST) is at UTC+01:00. During daylight saving time, it shifts to BST.
What should I know about the BST timezone?
BST runs from the last Sunday in March to the last Sunday in October. BST is exactly one hour ahead of GMT, the UK's standard time.
When is it midnight in NZST, what time is it in BST?
When it is 12:00 AM (midnight) in NZST (NZST), it is -11h later in BST (BST).
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- nzst to kathmandu
- new york to nzst
- london to nzst
- dubai to nzst
- tokyo to nzst
- singapore to nzst
- sydney to nzst
- los angeles to nzst
- paris to nzst
- delhi to nzst
- mumbai to nzst
- berlin to nzst
- hong kong to nzst
- toronto to nzst
- kathmandu to nzst
See every conversion from NZST →·See every conversion from BST →