What is the time difference between NZST and HST?

Hawaii Standard Time (HST) is 23 hours behind New Zealand Standard Time (NZST). NZST uses a UTC offset of UTC+13, while HST uses UTC-10. For example, when it's 9:00 AM in NZST, it's 10:00 AM in HST. Note that this difference may shift by one hour during daylight saving time transitions if NZST observes DST. Use the conversion table above to see the exact time for each hour of the day.

How do I convert NZST to HST?

To convert NZST to HST, subtract 23 hours from the NZST time. For example, 9:00 AM NZST is 10:00 AM HST, and 5:00 PM NZST is 6:00 PM HST. Keep in mind that during daylight saving time transitions, the offset between these timezones may temporarily change by one hour. You can also use the interactive converter above for quick, accurate results.

What time is it in HST when it's noon in NZST?

When it's 12:00 PM (noon) in NZST, it's 1:00 PM in HST. This is because HST is 23 hours behind NZST. Similarly, when it's 6:00 PM in NZST, it's 7:00 PM in HST. During daylight saving time transitions, these times may shift by one hour, so always verify the current offset. The color-coded conversion table above shows every hour mapped between both timezones.

How many hours behind is HST from NZST?

HST is 23 hours behind NZST. This means when it's 9:00 AM in NZST, it's 10:00 AM in HST, and when it's midnight in NZST, it's 1:00 AM in HST. The exact difference can vary by one hour during daylight saving time transitions. The conversion table above provides a complete hour-by-hour mapping.

Is HST ahead or behind NZST?

HST is behind NZST by 23 hours. Clocks in HST show an earlier time than NZST, meaning the day starts later in HST relative to NZST. For example, when it's noon in NZST, it's still 1:00 PM in HST. This gap may change by one hour during DST transitions.

Does NZST observe daylight saving time?

Yes, New Zealand Standard Time observes daylight saving time. During DST, the abbreviation changes to NZDT and clocks move forward by one hour, typically in spring. Clocks then fall back in autumn, returning to standard NZST time. This means the UTC offset for NZST shifts between two values depending on the season. Check our DST change calendar for exact transition dates that may affect your NZST to HST conversions.

Does HST observe daylight saving time?

No, Hawaii Standard Time does not observe daylight saving time. The UTC offset of UTC-10 remains the same year-round, making time conversions to HST more predictable. Countries and regions in this timezone keep their clocks unchanged regardless of the season.

What is the best time to call from NZST to HST?

The best time for a call between NZST and HST is during overlapping business hours (9 AM – 5 PM) in both timezones. To reach someone in HST during their work day, call between 8:00 AM and 4:00 PM your NZST time. Avoid calling too early or late, as the 23 hours difference means your evening could be their early morning. Check the color-coded conversion table above — green hours indicate business hours in both zones, making it easy to find the ideal time.

When does daylight saving time change in NZST?

Daylight saving time transitions vary by year and region. New Zealand Standard Time observes DST, which typically shifts clocks forward by one hour in spring ("spring forward") and back in fall ("fall back"). During these transition periods, the time difference between NZST and HST may temporarily change by one hour, which can cause confusion for scheduled meetings or calls. It's important to double-check your conversions around transition dates, especially if the two timezones switch on different dates. Check our DST change calendar for exact transition dates in the current year.

Do NZST and HST ever have the same time?

No, NZST and HST never show the same time because their base UTC offsets are different. However, because NZST observes daylight saving time and HST does not, the time difference between them changes by one hour during DST transitions. This means the gap narrows or widens depending on the season, but the two clocks never align. Always verify the current offset around DST transition dates to avoid scheduling errors.

NZST to HST Converter

Convert New Zealand Standard Time to Hawaii Standard Time. See the hour-by-hour conversion table below.

Upcoming DST Change

New Zealand Time (NZDT) will fall back on April 5. Clocks will shift by 1 hour (NZDT → NZST).

View all DST changes

Timezone Details

New Zealand Standard Time

7:53 PM

Saturday, April 4, 2026

NZDT (UTC+13:00)

Hawaii Standard Time

8:53 PM

Friday, April 3, 2026

HST (UTC-10:00)

Difference: -23 hours

NZDT DST: Yes (NZDT)

HST DST: No

24-Hour Overview

NZDT — 24-hour overview

12a12a

3a3a

6a6a

9a9a

10a

11a

12p12p

3p3p

6p6p

9p9p

10p

11p

NightMorningBusinessEvening

HST — 24-hour overview

1a1a

4a4a

7a7a

10a10a

11a

12p

1p1p

4p4p

7p7p

10p10p

11p

12a

NightMorningBusinessEvening

Frequently Asked Questions

Related Conversions

HST to NZST

Cities in These Timezones

NZST Cities

Auckland Christchurch Wellington

HST Cities

Honolulu

More Tools

Compare NZST & HST Plan a Meeting (NZST & HST)See on Map

Learn More

How Time Zones Work Understanding DST Timezone Abbreviations

External Resources

New Zealand Standard Time on Wikipedia Hawaii Standard Time on Wikipedia IANA Time Zone Database