HST to New Zealand
+23hHST
HSTSOURCENew Zealand
NZDTGreen rows indicate typical business hours (9 AM - 5 PM)
HST and NZDT on the World Map
The map below highlights the HST (Hawaii Standard Time) and NZDT (New Zealand Standard Time) timezone regions across the globe.
HST – Hawaii Standard Time
UTC-10:00Hawaii Standard Time (HST) is the time zone for the Hawaiian Islands, 10 hours behind UTC.
- •Hawaii does not observe daylight saving time.
- •HST is 5 hours behind EST in winter and 6 hours behind EDT in summer.
- •Hawaii is one of only two US states that don't observe DST (the other is Arizona).
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).
Everything You Need to Know About HST and New Zealand Time
HST runs on Hawaii Standard Time (HST) at UTC-10:00. New Zealand runs on New Zealand Daylight Time (NZDT) at UTC+13:00, also currently on daylight saving time. That puts HST 23 hours ahead of New Zealand — a difference of +23h at the current offsets.
In practice, when it is 9:00 AM in HST it is 8:00 AM in New Zealand on the next day. Midnight in HST is 11:00 PM in New Zealand.New Zealand observes daylight saving time while HST does not, so the gap narrows or widens by an hour part of the year.
HST to New Zealand time conversion table
| HST (HST) | New Zealand (NZDT) | Day |
|---|---|---|
| 12:00 AM | 11:00 PM | same day |
| 6:00 AM | 5:00 AM | next day |
| 7:00 AM | 6:00 AM | next day |
| 8:00 AM | 7:00 AM | next day |
| 9:00 AM | 8:00 AM | next day |
| 12:00 PM | 11:00 AM | next day |
| 3:00 PM | 2:00 PM | next day |
| 5:00 PM | 4:00 PM | next day |
| 6:00 PM | 5:00 PM | next day |
| 9:00 PM | 8:00 PM | next day |
Why people convert HST to New Zealand time
- Scheduling a call from HST to New Zealand: a 10:00 AM start in HST lands at 9:00 AM in New Zealand the next day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a +23h gap: HST and New Zealand 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 New Zealand is 8:00 AM in HST.
- Watching a live event or market open: HST viewers need 8:00 AM in New Zealand to catch a 9:00 AM start there, and 1:00 AM if the event is anchored to HST.
- Always state the zone abbreviation, not just the hour. "3:00 PM HST" is unambiguous; "3 PM" across a +23h gap is not.
- With a +23h gap there is no shared 9-to-5 window, so alternate the early start: one week HST takes the early slot, the next week New Zealand does.
- New Zealand: Clocks fall back on Sat, Apr 3, 2027. Any meeting series spanning that date will shift by an hour in local time.
About HST (Hawaii Standard Time)
Hawaii Standard Time (HST) is used in the state of Hawaii and does not observe daylight saving time. This makes HST one of the most consistent time zones in the US. The Hawaiian Islands are among the last places on Earth to see a new calendar day.
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 HST and New Zealand
With a +23h offset there is no overlap inside a normal 9 AM – 5 PM day. New Zealand opens at 9:00 AM NZDT, which is 8:00 AM in HST, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
HST and New Zealand have no shared working hours because of the +23h gap. Teams need to alternate early starts or rely on asynchronous handovers.
HST is 23 hours ahead of New Zealand (HST UTC-10:00 → 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
HST
Does not observe DST
New Zealand
☀ 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 HST and New Zealand?
HST (HST, UTC-10:00) is 23 hours ahead of New Zealand (NZDT, UTC+13:00). The gap is currently +23h.
How do I convert HST time to New Zealand time?
Add +23h to HST local time. For example, 9:00 AM in HST is 8:00 AM in New Zealand (next day).
What time is it in New Zealand right now?
New Zealand 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 +23h offset from HST.
What is the best time to call New Zealand from HST?
There is no shared working-hours window because of the +23h gap. The closest option is 1:00 PM in HST, which is 12:00 PM in New Zealand.
Which is ahead, HST or New Zealand?
HST is 23 hours ahead of New Zealand. When it is 12:00 PM in HST it is 11:00 AM in New Zealand.
Do HST and New Zealand use different time zones?
HST uses HST at UTC-10:00, while New Zealand (New Zealand) uses NZDT at UTC+13:00. The IANA identifiers are Pacific/Honolulu and Pacific/Auckland.
Does daylight saving time affect the HST–New Zealand difference?
Yes at the moment: New Zealand is on daylight saving time and HST is not, so the +23h gap shifts by an hour when exactly one of them changes clocks.
Which other cities share HST's time zone?
HST also covers Honolulu, Hilo, Kailua, Pearl City, Kapolei.
Which countries use HST, HST's zone?
HST is used in United States (Hawaii).
Is there a day difference between HST and New Zealand?
Sometimes. The +23h gap is large enough that 8:00 PM or later in HST already falls on the next day in New Zealand.
What is the time difference between HST and New Zealand?
New Zealand is +23h from HST.
What timezone is HST in?
HST operates on its local timezone.
What timezone is New Zealand in?
New Zealand operates on its local timezone.
Which countries use HST (Hawaii Standard Time)?
HST is used in United States (Hawaii).
Does HST observe daylight saving time?
No, HST does not observe daylight saving time and remains at UTC-10:00 year-round.
What are some interesting facts about HST?
Hawaii does not observe daylight saving time. HST is 5 hours behind EST in winter and 6 hours behind EDT in summer.
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 HST, what time is it in New Zealand?
When it is 12:00 AM (midnight) in HST (HST), it is +23h later in New Zealand (NZST).
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