NZDT to JST
-4hNZDT
NZDTSOURCEJST
JSTGreen rows indicate typical business hours (9 AM - 5 PM)
NZDT and JST on the World Map
The map below highlights the NZDT (New Zealand Daylight Time) and JST (Japan Standard Time) timezone regions across the globe.
NZDT – New Zealand Daylight Time
UTC+13:00New Zealand Daylight Time (NZDT, UTC+13:00) is New Zealand's summer time zone, one of the earliest offsets in the world.
- •NZDT runs from the last Sunday in September to the first Sunday in April.
- •NZDT is UTC+13:00 — one of the earliest time offsets used anywhere.
- •New Zealand changes its clocks two to three weeks before Australia.
- •The Chatham Islands observe UTC+13:45 during their summer time.
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.
Everything You Need to Know About NZDT and JST Time
NZDT runs on New Zealand Daylight Time (NZDT) at UTC+13:00. JST runs on Japan Standard Time (JST) at UTC+09:00. That puts NZDT 4 hours behind JST — a difference of -4h at the current offsets.
In practice, when it is 9:00 AM in NZDT it is 5:00 AM in JST. Midnight in NZDT is 8:00 PM in JST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
NZDT to JST time conversion table
| NZDT (NZDT) | JST (JST) | Day |
|---|---|---|
| 12:00 AM | 8:00 PM | previous day |
| 6:00 AM | 2:00 AM | same day |
| 7:00 AM | 3:00 AM | same day |
| 8:00 AM | 4:00 AM | same day |
| 9:00 AM | 5:00 AM | same day |
| 12:00 PM | 8:00 AM | same day |
| 3:00 PM | 11:00 AM | same day |
| 5:00 PM | 1:00 PM | same day |
| 6:00 PM | 2:00 PM | same day |
| 9:00 PM | 5:00 PM | same day |
Why people convert NZDT to JST time
- Scheduling a call from NZDT to JST: a 10:00 AM start in NZDT lands at 6:00 AM in JST, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both NZDT and JST are inside the 9-to-5 working day between 1:00 PM and 5:00 PM NZDT time (9:00 AM–1:00 PM JST). That is roughly 4 hours of usable overlap.
- Booking travel or deliveries: tracking JST local time against NZDT keeps pickup windows and arrival estimates honest across the -4h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM NZDT" is unambiguous; "3 PM" across a -4h gap is not.
- Block 1:00 PM–5:00 PM NZDT as the recurring meeting window if you work primarily from NZDT and need JST colleagues present.
About NZDT (New Zealand Daylight Time)
New Zealand Daylight Time (NZDT) is the summer time zone for New Zealand, one hour ahead of New Zealand Standard Time (NZST, UTC+12:00). It runs from the last Sunday in September to the first Sunday in April, so New Zealand shifts a week or two earlier in spring than Australia. At UTC+13:00, NZDT is among the earliest offsets in the world — only Samoa, Tonga and parts of Kiribati run further ahead at certain times of year. Auckland and Wellington are 13 hours ahead of UTC during NZDT, 12 hours ahead of Sydney, and 18 hours ahead of New York. The Chatham Islands, 45 minutes further east, move to UTC+13:45.
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.
Best time to call between NZDT and JST
Both NZDT and JST sit inside the 9 AM – 5 PM working day between 1:00 PM–5:00 PM NZDT, which is 9:00 AM–1:00 PM JST. That gives roughly 4 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
NZDT and JST overlap for about 4 hours during the working day — enough for meetings if you avoid the edges of the window.
NZDT is 4 hours behind JST (NZDT UTC+13:00 → JST UTC+09:00). The shared working window is 1:00 PM–5:00 PM NZDT. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
NZDT
☀ Currently in DST
Standard: UTC+12:00 · DST: UTC+13:00
Clocks fall back on Sat, Apr 3, 2027
JST
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 NZDT and JST?
NZDT (NZDT, UTC+13:00) is 4 hours behind JST (JST, UTC+09:00). The gap is currently -4h.
How do I convert NZDT time to JST time?
Add -4h to NZDT local time. For example, 9:00 AM in NZDT is 5:00 AM in JST.
What time is it in JST right now?
JST uses JST at UTC+09:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -4h offset from NZDT.
What is the best time to call JST from NZDT?
Call between 1:00 PM and 5:00 PM NZDT — that maps to 9:00 AM–1:00 PM JST and keeps both parties inside the working day.
Which is behind, NZDT or JST?
NZDT is 4 hours behind JST. When it is 12:00 PM in NZDT it is 8:00 AM in JST.
Does daylight saving time affect the NZDT–JST difference?
Neither zone observes daylight saving time, so the -4h offset between NZDT and JST is fixed all year.
Which other cities share NZDT's time zone?
NZDT also covers Auckland, Wellington, Christchurch, Hamilton, Dunedin.
Which countries use NZDT, NZDT's zone?
NZDT is used in New Zealand.
Is there a day difference between NZDT and JST?
Not normally. The -4h gap only pushes the date over the previous day.
What is the time difference between NZDT and JST?
JST is -4h from NZDT.
What timezone is NZDT in?
NZDT operates on its local timezone.
What timezone is JST in?
JST operates on its local timezone.
Which countries use NZDT (New Zealand Daylight Time)?
NZDT is used in New Zealand.
Does NZDT observe daylight saving time?
Yes, NZDT switches to NZDT during summer months.
What are some interesting facts about NZDT?
NZDT runs from the last Sunday in September to the first Sunday in April. NZDT is UTC+13:00 — one of the earliest time offsets used anywhere.
Which cities are in the JST timezone?
Major cities in the JST timezone include Tokyo, Osaka, Yokohama, Nagoya, Sapporo, Kyoto, Kobe, Fukuoka.
What is the UTC offset for JST?
Japan Standard Time (JST) is at UTC+09:00.
What should I know about the JST timezone?
Japan does not observe daylight saving time. Tokyo is the most populous metropolitan area in the world.
When is it midnight in NZDT, what time is it in JST?
When it is 12:00 AM (midnight) in NZDT (NZDT), it is -4h later in JST (JST).
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- new york to nzdt
- london to nzdt
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- tokyo to nzdt
- singapore to nzdt
- sydney to nzdt
- los angeles to nzdt
- paris to nzdt
- delhi to nzdt
- mumbai to nzdt
- berlin to nzdt
- hong kong to nzdt
- toronto to nzdt
- kathmandu to nzdt
See every conversion from NZDT →·See every conversion from JST →