GMT to New York
-4hGMT
GMTSOURCENew York
EDTGreen rows indicate typical business hours (9 AM - 5 PM)
GMT and EDT on the World Map
The map below highlights the GMT (Greenwich Mean Time) and EDT (Eastern Standard Time) timezone regions across the globe.
GMT – Greenwich Mean Time
UTC+00:00Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory in Greenwich, London. It is the same as UTC+00:00.
- •GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London.
- •The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
- •GMT and UTC are often used interchangeably, but UTC is based on atomic clocks.
- •Iceland uses GMT year-round and never observes daylight saving time.
- •The UK switches from GMT to BST (British Summer Time) in late March each year.
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.
About New York
WikipediaNew York City, the financial capital of the world, operates on Eastern Time (EST/EDT). Home to Wall Street and the NYSE, NYC is crucial for global business coordination.
New York City has more than 800 languages spoken, making it the most linguistically diverse city in the world.
GMT vs New York: Offsets, DST and Best Call Times
GMT runs on Greenwich Mean Time (GMT) at UTC+00:00. New York runs on Eastern Daylight Time (EDT) at UTC-04:00, also currently on daylight saving time. That puts GMT 4 hours behind New York — a difference of -4h at the current offsets.
In practice, when it is 9:00 AM in GMT it is 5:00 AM in New York. Midnight in GMT is 8:00 PM in New York.New York observes daylight saving time while GMT does not, so the gap narrows or widens by an hour part of the year.
GMT to New York time conversion table
| GMT (GMT) | New York (EDT) | 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 GMT to New York time
- Scheduling a call from GMT to New York: a 10:00 AM start in GMT lands at 6:00 AM in New York, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both GMT and New York are inside the 9-to-5 working day between 1:00 PM and 5:00 PM GMT time (9:00 AM–1:00 PM EDT). That is roughly 4 hours of usable overlap.
- Watching a live event or market open: GMT viewers need 5:00 AM in New York to catch a 9:00 AM start there, and 4:00 AM if the event is anchored to GMT.
- Always state the zone abbreviation, not just the hour. "3:00 PM GMT" is unambiguous; "3 PM" across a -4h gap is not.
- Block 1:00 PM–5:00 PM GMT as the recurring meeting window if you work primarily from GMT and need New York colleagues present.
- New York: Clocks fall back on Sun, Nov 1, 2026. Any meeting series spanning that date will shift by an hour in local time.
About GMT (Greenwich Mean Time)
Greenwich Mean Time (GMT) is the clock time at the Royal Observatory in Greenwich, London, which sits on the Prime Meridian (0° longitude). GMT serves as the reference point from which all other time zones are calculated. The United Kingdom uses GMT during winter months and switches to British Summer Time (BST, UTC+01:00) from late March to late October. Several West African nations use GMT year-round. GMT is often used interchangeably with UTC (Coordinated Universal Time), although technically they are different – UTC is based on atomic clocks while GMT is based on Earth's rotation.
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.
Best time to call between GMT and New York
Both GMT and New York sit inside the 9 AM – 5 PM working day between 1:00 PM–5:00 PM GMT, which is 9:00 AM–1:00 PM EDT. That gives roughly 4 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
GMT and New York overlap for about 4 hours during the working day — enough for meetings if you avoid the edges of the window.
GMT is 4 hours behind New York (GMT UTC+00:00 → EDT UTC-04:00). The shared working window is 1:00 PM–5:00 PM GMT. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
GMT
☀ Currently in DST
Standard: UTC+00:00 · DST: UTC+01:00
Clocks fall back on Sun, Oct 25, 2026
New York
☀ Currently in DST
Standard: UTC-05:00 · DST: UTC-04:00
Clocks fall back on Sun, Nov 1, 2026
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 GMT and New York?
GMT (GMT, UTC+00:00) is 4 hours behind New York (EDT, UTC-04:00). The gap is currently -4h.
How do I convert GMT time to New York time?
Add -4h to GMT local time. For example, 9:00 AM in GMT is 5:00 AM in New York.
What time is it in New York right now?
New York uses EDT at UTC-04:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -4h offset from GMT.
What is the best time to call New York from GMT?
Call between 1:00 PM and 5:00 PM GMT — that maps to 9:00 AM–1:00 PM EDT and keeps both parties inside the working day.
Which is behind, GMT or New York?
GMT is 4 hours behind New York. When it is 12:00 PM in GMT it is 8:00 AM in New York.
Do GMT and New York use different time zones?
GMT uses GMT at UTC+00:00, while New York (USA) uses EDT at UTC-04:00. The IANA identifiers are Europe/London and America/New_York.
Does daylight saving time affect the GMT–New York difference?
Yes at the moment: New York is on daylight saving time and GMT is not, so the -4h gap shifts by an hour when exactly one of them changes clocks.
Which other cities share GMT's time zone?
GMT also covers London, Dublin, Lisbon, Accra, Reykjavik, Edinburgh, Casablanca, Dakar and 5 more.
Which countries use GMT, GMT's zone?
GMT is used in United Kingdom, Ireland, Iceland, Portugal (mainland), Ghana, Senegal, Mali, Mauritania and 7 more.
Is there a day difference between GMT and New York?
Not normally. The -4h gap only pushes the date over the previous day.
What is the time difference between GMT and New York?
New York is -4h from GMT.
What timezone is GMT in?
GMT operates on its local timezone.
What timezone is New York in?
New York City, the financial capital of the world, operates on Eastern Time (EST/EDT). Home to Wall Street and the NYSE, NYC is crucial for global business coordination.
What are the business hours in New York?
Standard business hours in New York are 9:00 AM - 5:00 PM EST.
Which countries use GMT (Greenwich Mean Time)?
GMT is used in United Kingdom, Ireland, Iceland, Portugal (mainland), Ghana, Senegal, and 9 more countries.
Does GMT observe daylight saving time?
Yes, GMT switches to BST during summer months.
What are some interesting facts about GMT?
GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London. The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
Which cities are in the EST timezone?
Major cities in the EST timezone include New York City, Washington D.C., Miami, Toronto, Philadelphia, Atlanta, Boston, Montreal.
What is the UTC offset for EST?
Eastern Standard Time (EST) is at UTC-05:00. During daylight saving time, it shifts to EDT.
What should I know about the EST timezone?
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.
When is it midnight in GMT, what time is it in New York?
When it is 12:00 AM (midnight) in GMT (GMT), it is -4h later in New York (EST).
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