BST to NZST
+11hBST
BSTSOURCENZST
NZSTGreen rows indicate typical business hours (9 AM - 5 PM)
BST and NZST on the World Map
The map below highlights the BST (British Summer Time) and NZST (New Zealand Standard Time) timezone regions across the globe.
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 – 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).
Time Conversion Guide: BST to NZST
BST runs on British Summer Time (BST) at UTC+01:00. NZST runs on New Zealand Standard Time (NZST) at UTC+12:00. That puts BST 11 hours ahead of NZST — a difference of +11h at the current offsets.
In practice, when it is 9:00 AM in BST it is 8:00 PM in NZST. Midnight in BST is 11:00 AM in NZST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
BST to NZST time conversion table
| BST (BST) | NZST (NZST) | 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 BST to NZST time
- Scheduling a call from BST to NZST: a 10:00 AM start in BST lands at 9:00 PM in NZST, so you can confirm the slot without doing the arithmetic yourself.
- Handling a +11h gap: BST and NZST 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 NZST is 8:00 PM in BST.
- Keeping family and friends in sync: knowing that 8:00 PM in BST is 7:00 AM in NZST makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM BST" 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 BST takes the early slot, the next week NZST does.
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.
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 BST and NZST
With a +11h offset there is no overlap inside a normal 9 AM – 5 PM day. NZST opens at 9:00 AM NZST, which is 8:00 PM in BST, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
BST and NZST have no shared working hours because of the +11h gap. Teams need to alternate early starts or rely on asynchronous handovers.
BST is 11 hours ahead of NZST (BST UTC+01:00 → NZST UTC+12:00). 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
BST
☀ Currently in DST
Standard: UTC+00:00 · DST: UTC+01:00
Clocks fall back on Sun, Oct 25, 2026
NZST
☀ 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 BST and NZST?
BST (BST, UTC+01:00) is 11 hours ahead of NZST (NZST, UTC+12:00). The gap is currently +11h.
How do I convert BST time to NZST time?
Add +11h to BST local time. For example, 9:00 AM in BST is 8:00 PM in NZST.
What time is it in NZST right now?
NZST uses NZST at UTC+12:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +11h offset from BST.
What is the best time to call NZST from BST?
There is no shared working-hours window because of the +11h gap. The closest option is 1:00 PM in BST, which is 12:00 AM in NZST.
Which is ahead, BST or NZST?
BST is 11 hours ahead of NZST. When it is 12:00 PM in BST it is 11:00 PM in NZST.
Does daylight saving time affect the BST–NZST difference?
Neither zone observes daylight saving time, so the +11h offset between BST and NZST is fixed all year.
Which other cities share BST's time zone?
BST also covers London, Birmingham, Manchester, Glasgow, Edinburgh, Cardiff, Belfast, Liverpool and 2 more.
Which countries use BST, BST's zone?
BST is used in United Kingdom.
Is there a day difference between BST and NZST?
Not normally. The +11h gap only pushes the date over for late-evening times.
What is the time difference between BST and NZST?
NZST is +11h from BST.
What timezone is BST in?
BST operates on its local timezone.
What timezone is NZST in?
NZST operates on its local timezone.
Which countries use BST (British Summer Time)?
BST is used in United Kingdom.
Does BST observe daylight saving time?
Yes, BST switches to BST during summer months.
What are some interesting facts about BST?
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.
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 BST, what time is it in NZST?
When it is 12:00 AM (midnight) in BST (BST), it is +11h later in NZST (NZST).
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See every conversion from BST →·See every conversion from NZST →