JST to NZST
+3hJST
JSTSOURCENZST
NZSTGreen rows indicate typical business hours (9 AM - 5 PM)
JST and NZST on the World Map
The map below highlights the JST (Japan Standard Time) and NZST (New Zealand Standard Time) timezone regions across the globe.
JST – Japan Standard Time
UTC+09:00Japan Standard Time (JST) is the time zone for Japan, 9 hours ahead of UTC.
- •Japan does not observe daylight saving time.
- •Tokyo is the most populous metropolitan area in the world.
- •The Tokyo Stock Exchange operates from 9:00 AM to 3:00 PM JST.
- •JST is 14 hours ahead of EST and 9 hours ahead of GMT.
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: JST to NZST
JST runs on Japan Standard Time (JST) at UTC+09:00. NZST runs on New Zealand Standard Time (NZST) at UTC+12:00. That puts JST 3 hours ahead of NZST — a difference of +3h at the current offsets.
In practice, when it is 9:00 AM in JST it is 12:00 PM in NZST. Midnight in JST is 3:00 AM in NZST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
JST to NZST time conversion table
| JST (JST) | NZST (NZST) | Day |
|---|---|---|
| 12:00 AM | 3:00 AM | same day |
| 6:00 AM | 9:00 AM | same day |
| 7:00 AM | 10:00 AM | same day |
| 8:00 AM | 11:00 AM | same day |
| 9:00 AM | 12:00 PM | same day |
| 12:00 PM | 3:00 PM | same day |
| 3:00 PM | 6:00 PM | same day |
| 5:00 PM | 8:00 PM | same day |
| 6:00 PM | 9:00 PM | same day |
| 9:00 PM | 12:00 AM | next day |
Why people convert JST to NZST time
- Scheduling a call from JST to NZST: a 10:00 AM start in JST lands at 1:00 PM in NZST, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both JST and NZST are inside the 9-to-5 working day between 9:00 AM and 2:00 PM JST time (12:00 PM–5:00 PM NZST). That is roughly 5 hours of usable overlap.
- Coordinating a JST-based team with NZST contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.
- Always state the zone abbreviation, not just the hour. "3:00 PM JST" is unambiguous; "3 PM" across a +3h gap is not.
- Block 9:00 AM–2:00 PM JST as the recurring meeting window if you work primarily from JST and need NZST colleagues present.
About JST (Japan Standard Time)
Japan Standard Time (JST) is the standard time zone for all of Japan. Japan does not observe daylight saving time. JST is 9 hours ahead of UTC and 14 hours ahead of EST. The Tokyo Stock Exchange, the world's third largest by market capitalization, operates on JST. South Korea uses the same offset (KST) but it is a distinct time zone.
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 JST and NZST
Both JST and NZST sit inside the 9 AM – 5 PM working day between 9:00 AM–2:00 PM JST, which is 12:00 PM–5:00 PM NZST. That gives roughly 5 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
JST and NZST share 5 hours of working-hours overlap (9:00 AM–2:00 PM JST), so scheduling a live meeting is straightforward.
JST is 3 hours ahead of NZST (JST UTC+09:00 → NZST UTC+12:00). The shared working window is 9:00 AM–2:00 PM JST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
JST
Does not observe DST
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 JST and NZST?
JST (JST, UTC+09:00) is 3 hours ahead of NZST (NZST, UTC+12:00). The gap is currently +3h.
How do I convert JST time to NZST time?
Add +3h to JST local time. For example, 9:00 AM in JST is 12:00 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 +3h offset from JST.
What is the best time to call NZST from JST?
Call between 9:00 AM and 2:00 PM JST — that maps to 12:00 PM–5:00 PM NZST and keeps both parties inside the working day.
Which is ahead, JST or NZST?
JST is 3 hours ahead of NZST. When it is 12:00 PM in JST it is 3:00 PM in NZST.
Does daylight saving time affect the JST–NZST difference?
Neither zone observes daylight saving time, so the +3h offset between JST and NZST is fixed all year.
Which other cities share JST's time zone?
JST also covers Tokyo, Osaka, Yokohama, Nagoya, Sapporo, Kyoto, Kobe, Fukuoka and 1 more.
Which countries use JST, JST's zone?
JST is used in Japan.
Is there a day difference between JST and NZST?
Not normally. The +3h gap only pushes the date over for late-evening times.
What is the time difference between JST and NZST?
NZST is +3h from JST.
What timezone is JST in?
JST operates on its local timezone.
What timezone is NZST in?
NZST operates on its local timezone.
Which countries use JST (Japan Standard Time)?
JST is used in Japan.
Does JST observe daylight saving time?
No, JST does not observe daylight saving time and remains at UTC+09:00 year-round.
What are some interesting facts about JST?
Japan does not observe daylight saving time. Tokyo is the most populous metropolitan area in the world.
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 JST, what time is it in NZST?
When it is 12:00 AM (midnight) in JST (JST), it is +3h later in NZST (NZST).
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See every conversion from JST →·See every conversion from NZST →