NZST to HST
-22hNZST
NZSTSOURCEHST
HSTGreen rows indicate typical business hours (9 AM - 5 PM)
NZST and HST on the World Map
The map below highlights the NZST (New Zealand Standard Time) and HST (Hawaii Standard 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).
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).
Understanding the -22h Gap: NZST vs HST
NZST runs on New Zealand Standard Time (NZST) at UTC+12:00. HST runs on Hawaii Standard Time (HST) at UTC-10:00. That puts NZST 22 hours behind HST — a difference of -22h at the current offsets.
In practice, when it is 9:00 AM in NZST it is 11:00 AM in HST on the previous day. Midnight in NZST is 2:00 AM in HST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
NZST to HST time conversion table
| NZST (NZST) | HST (HST) | Day |
|---|---|---|
| 12:00 AM | 2:00 AM | previous day |
| 6:00 AM | 8:00 AM | previous day |
| 7:00 AM | 9:00 AM | previous day |
| 8:00 AM | 10:00 AM | previous day |
| 9:00 AM | 11:00 AM | previous day |
| 12:00 PM | 2:00 PM | previous day |
| 3:00 PM | 5:00 PM | previous day |
| 5:00 PM | 7:00 PM | previous day |
| 6:00 PM | 8:00 PM | previous day |
| 9:00 PM | 11:00 PM | previous day |
Why people convert NZST to HST time
- Scheduling a call from NZST to HST: a 10:00 AM start in NZST lands at 12:00 PM in HST the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -22h gap: NZST and HST 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 HST is 11:00 AM in NZST.
- Watching a live event or market open: NZST viewers need 11:00 AM in HST to catch a 9:00 AM start there, and 10:00 PM 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 -22h gap is not.
- With a -22h gap there is no shared 9-to-5 window, so alternate the early start: one week NZST takes the early slot, the next week HST 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 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.
Best time to call between NZST and HST
With a -22h offset there is no overlap inside a normal 9 AM – 5 PM day. HST opens at 9:00 AM HST, which is 11:00 AM in NZST, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
NZST and HST have no shared working hours because of the -22h gap. Teams need to alternate early starts or rely on asynchronous handovers.
NZST is 22 hours behind HST (NZST UTC+12:00 → HST UTC-10:00). 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
HST
Does not observe DST
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 HST?
NZST (NZST, UTC+12:00) is 22 hours behind HST (HST, UTC-10:00). The gap is currently -22h.
How do I convert NZST time to HST time?
Add -22h to NZST local time. For example, 9:00 AM in NZST is 11:00 AM in HST (previous day).
What time is it in HST right now?
HST uses HST at UTC-10:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -22h offset from NZST.
What is the best time to call HST from NZST?
There is no shared working-hours window because of the -22h gap. The closest option is 1:00 PM in NZST, which is 3:00 PM in HST.
Which is behind, NZST or HST?
NZST is 22 hours behind HST. When it is 12:00 PM in NZST it is 2:00 PM in HST.
Does daylight saving time affect the NZST–HST difference?
Neither zone observes daylight saving time, so the -22h offset between NZST and HST 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 HST?
Sometimes. The -22h gap is large enough that 8:00 PM or later in NZST already falls on the previous day in HST.
What is the time difference between NZST and HST?
HST is -22h from NZST.
What timezone is NZST in?
NZST operates on its local timezone.
What timezone is HST in?
HST 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 HST timezone?
Major cities in the HST timezone include Honolulu, Hilo, Kailua, Pearl City, Kapolei.
What is the UTC offset for HST?
Hawaii Standard Time (HST) is at UTC-10:00.
What should I know about the HST timezone?
Hawaii does not observe daylight saving time. HST is 5 hours behind EST in winter and 6 hours behind EDT in summer.
When is it midnight in NZST, what time is it in HST?
When it is 12:00 AM (midnight) in NZST (NZST), it is -22h later in HST (HST).
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See every conversion from NZST →·See every conversion from HST →