TimeToZone

HST to NZST Converter

NZDT is 23 hours ahead of HST. 9:00 AM HST = 8:00 AM NZDT (next day).

⇄ Swap
HSTfrom
Hawaii-Aleutian Standard Time
--:--
 
NZST
New Zealand Standard Time
--:--
 

NZDT is 23 hours ahead of HST at the moment. To convert HST to NZST, add 23 hours to the HST time: 9:00 AM HST = 8:00 AM NZDT (next day).

HST (Hawaii-Aleutian Time) is used in Hawaii (all year, no daylight saving time). NZST (New Zealand Time) is used in New Zealand.

NZST (New Zealand Standard Time) is not in force right now: New Zealand is currently on NZDT. This page uses whichever name applies on the date you pick, so the numbers below say NZDT.

HST to NZST time conversion table

HST to NZST on 6 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.

HSTNZSTDay
12:00 AM HST11:00 PM NZDTnight
1:00 AM HST12:00 AM NZDTnext day
2:00 AM HST1:00 AM NZDTnext day
3:00 AM HST2:00 AM NZDTnext day
4:00 AM HST3:00 AM NZDTnext day
5:00 AM HST4:00 AM NZDTnext day
6:00 AM HST5:00 AM NZDTnext day
7:00 AM HST6:00 AM NZDTnext day
8:00 AM HST7:00 AM NZDTnext day
9:00 AM HST8:00 AM NZDTnext day
10:00 AM HST9:00 AM NZDTwork hours
11:00 AM HST10:00 AM NZDTwork hours
12:00 PM HST11:00 AM NZDTwork hours
1:00 PM HST12:00 PM NZDTwork hours
2:00 PM HST1:00 PM NZDTwork hours
3:00 PM HST2:00 PM NZDTwork hours
4:00 PM HST3:00 PM NZDTwork hours
5:00 PM HST4:00 PM NZDTnext day
6:00 PM HST5:00 PM NZDTnext day
7:00 PM HST6:00 PM NZDTnext day
8:00 PM HST7:00 PM NZDTnext day
9:00 PM HST8:00 PM NZDTnext day
10:00 PM HST9:00 PM NZDTnext day
11:00 PM HST10:00 PM NZDTnext day
  • Work rows — 9 AM–5 PM in both places
  • Night in the destination (10 PM–6 AM)

How to convert HST to NZST

Add 23 hours to the HST time to get NZST.

Example: 9:00 AM HST = 8:00 AM NZDT (next day).

Across midnight: 10:00 PM HST = 9:00 PM NZDT (next day). The date changes, so always check the day as well as the hour.

Time difference between HST and NZST

The time difference between HST and NZST is not the same all year, because the two sides change for daylight saving time on different dates. In 2026 it works out like this:

  • 31 Dec 2025 – 3 Apr 2026: NZST is 23 hours ahead of HST.
  • 4 Apr 2026 – 25 Sep 2026: NZST is 22 hours ahead of HST.
  • 26 Sep 2026 – 30 Dec 2026: NZST is 23 hours ahead of HST.

HST and NZST during daylight saving time

  • HST does not observe daylight saving time; it stays on UTC−10 all year.
  • NZST next changes on 4 Apr 2027: clocks go back one hour at 02:59 local time, from NZDT (UTC+13) to NZST (UTC+12).

Best time for a meeting between HST and NZST

HST and NZST have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 8:00 AM HST, which is 7:00 AM NZDT.

Plan a meeting across more time zones.

HST to NZST FAQ

What is the time difference between HST and NZST?

Right now NZDT is 23 hours ahead of HST. The gap changes 3 times in 2026 because the two sides switch to daylight saving time on different dates.

What is 9 AM HST in NZST?

9:00 AM HST is 8:00 AM NZDT (next day).

What is 12 PM (noon) HST in NZST?

12:00 PM HST is 11:00 AM NZDT (next day).

Is NZST ahead of or behind HST?

NZDT is 23 hours ahead of HST, so it is later in NZST than in HST.

Does HST change for daylight saving time?

No. HST stays on the same offset all year, so conversions never shift for daylight saving time.

Does NZST change for daylight saving time?

Yes. NZST next changes on 4 Apr 2027, when clocks go back one hour from NZDT to NZST.

What is the best time for a meeting between HST and NZST?

HST and NZST have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 8:00 AM HST, which is 7:00 AM NZDT.

Related conversions

Convert NZST to HST

Convert HST to other time zones

Convert other time zones to NZST

Learn more

Updated 6 November 2026. Time zone data: IANA tz database.