EST to NZDT
+18hEST
ESTSOURCENZDT
NZDTGreen rows indicate typical business hours (9 AM - 5 PM)
EST and NZDT on the World Map
The map below highlights the EST (Eastern Standard Time) and NZDT (New Zealand Daylight Time) timezone regions across the globe.
EST – Eastern Standard Time
UTC-05:00Eastern Standard Time (EST) is the time zone for the eastern United States and Canada, 5 hours behind UTC.
- •EST is the most widely used time zone in the United States by population.
- •The New York Stock Exchange (NYSE) and NASDAQ operate on Eastern Time, opening at 9:30 AM EST.
- •23 US states are fully or partially in the Eastern Time Zone.
- •EST was established by the Standard Time Act of 1918.
- •Over 47% of the US population lives in the Eastern Time Zone.
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.
Time Conversion Guide: EST to NZDT
EST runs on Eastern Standard Time (EST) at UTC-05:00. NZDT runs on New Zealand Daylight Time (NZDT) at UTC+13:00. That puts EST 18 hours ahead of NZDT — a difference of +18h at the current offsets.
In practice, when it is 9:00 AM in EST it is 3:00 AM in NZDT on the next day. Midnight in EST is 6:00 PM in NZDT. Neither zone observes daylight saving time, so the offset between them stays constant all year.
EST to NZDT time conversion table
| EST (EST) | NZDT (NZDT) | Day |
|---|---|---|
| 12:00 AM | 6:00 PM | same day |
| 6:00 AM | 12:00 AM | next day |
| 7:00 AM | 1:00 AM | next day |
| 8:00 AM | 2:00 AM | next day |
| 9:00 AM | 3:00 AM | next day |
| 12:00 PM | 6:00 AM | next day |
| 3:00 PM | 9:00 AM | next day |
| 5:00 PM | 11:00 AM | next day |
| 6:00 PM | 12:00 PM | next day |
| 9:00 PM | 3:00 PM | next day |
Why people convert EST to NZDT time
- Scheduling a call from EST to NZDT: a 10:00 AM start in EST lands at 4:00 AM in NZDT the next day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a +18h gap: EST and NZDT 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 NZDT is 3:00 AM in EST.
- Watching a live event or market open: EST viewers need 3:00 AM in NZDT to catch a 9:00 AM start there, and 6:00 AM if the event is anchored to EST.
- Always state the zone abbreviation, not just the hour. "3:00 PM EST" is unambiguous; "3 PM" across a +18h gap is not.
- With a +18h gap there is no shared 9-to-5 window, so alternate the early start: one week EST takes the early slot, the next week NZDT does.
About EST (Eastern Standard Time)
Eastern Standard Time (EST) is observed during the winter months in the eastern part of North America. It covers 23 US states and parts of Canada including Ontario and Quebec. EST is the most populous time zone in the United States, home to major financial centers like New York City and global organizations headquartered in Washington D.C. During daylight saving time (March–November), clocks shift to Eastern Daylight Time (EDT, UTC-04:00). The time zone also covers parts of the Caribbean and Central America including Panama, Jamaica, and the Cayman Islands.
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.
Best time to call between EST and NZDT
With a +18h offset there is no overlap inside a normal 9 AM – 5 PM day. NZDT opens at 9:00 AM NZDT, which is 3:00 AM in EST, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
EST and NZDT have no shared working hours because of the +18h gap. Teams need to alternate early starts or rely on asynchronous handovers.
EST is 18 hours ahead of NZDT (EST UTC-05:00 → NZDT UTC+13:00). 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
EST
☀ Currently in DST
Standard: UTC-05:00 · DST: UTC-04:00
Clocks fall back on Sun, Nov 1, 2026
NZDT
☀ 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 EST and NZDT?
EST (EST, UTC-05:00) is 18 hours ahead of NZDT (NZDT, UTC+13:00). The gap is currently +18h.
How do I convert EST time to NZDT time?
Add +18h to EST local time. For example, 9:00 AM in EST is 3:00 AM in NZDT (next day).
What time is it in NZDT right now?
NZDT uses NZDT at UTC+13:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +18h offset from EST.
What is the best time to call NZDT from EST?
There is no shared working-hours window because of the +18h gap. The closest option is 1:00 PM in EST, which is 7:00 AM in NZDT.
Which is ahead, EST or NZDT?
EST is 18 hours ahead of NZDT. When it is 12:00 PM in EST it is 6:00 AM in NZDT.
Does daylight saving time affect the EST–NZDT difference?
Neither zone observes daylight saving time, so the +18h offset between EST and NZDT is fixed all year.
Which other cities share EST's time zone?
EST also covers New York City, Washington D.C., Miami, Toronto, Philadelphia, Atlanta, Boston, Montreal and 8 more.
Which countries use EST, EST's zone?
EST is used in United States (Eastern), Canada (Ontario, Quebec), Mexico (Quintana Roo), Panama, Jamaica, Cayman Islands, Haiti, Bahamas and 4 more.
Is there a day difference between EST and NZDT?
Sometimes. The +18h gap is large enough that 8:00 PM or later in EST already falls on the next day in NZDT.
What is the time difference between EST and NZDT?
NZDT is +18h from EST.
What timezone is EST in?
EST operates on its local timezone.
What timezone is NZDT in?
NZDT operates on its local timezone.
Which countries use EST (Eastern Standard Time)?
EST is used in United States (Eastern), Canada (Ontario, Quebec), Mexico (Quintana Roo), Panama, Jamaica, Cayman Islands, and 6 more countries.
Does EST observe daylight saving time?
Yes, EST switches to EDT during summer months.
What are some interesting facts about EST?
EST is the most widely used time zone in the United States by population. The New York Stock Exchange (NYSE) and NASDAQ operate on Eastern Time, opening at 9:30 AM EST.
Which cities are in the NZDT timezone?
Major cities in the NZDT timezone include Auckland, Wellington, Christchurch, Hamilton, Dunedin.
What is the UTC offset for NZDT?
New Zealand Daylight Time (NZDT) is at UTC+13:00. During daylight saving time, it shifts to NZDT.
What should I know about the NZDT timezone?
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.
When is it midnight in EST, what time is it in NZDT?
When it is 12:00 AM (midnight) in EST (EST), it is +18h later in NZDT (NZDT).
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See every conversion from EST →·See every conversion from NZDT →