How many hours ahead is Dublin compared to New York?

Dublin is either 4 or 5 hours ahead of New York depending on the time of year. The gap is 5 hours when New York is on EST (UTC-5) and Dublin is on GMT (UTC+0), and 4 hours when New York is on EDT (UTC-4) and Dublin is on IST (UTC+1). Both cities observe daylight saving time, but their transition dates can differ slightly.

Does this tool account for daylight saving time?

Yes. The tool uses the browser's built-in Intl.DateTimeFormat API with the full IANA timezone identifiers (America/New_York and Europe/Dublin), which automatically applies the correct DST offset for any date throughout the year.

What time zones are New York and Dublin in?

New York observes Eastern Standard Time (EST, UTC-5) in winter and Eastern Daylight Time (EDT, UTC-4) in summer. Dublin observes Greenwich Mean Time (GMT, UTC+0) in winter and Irish Standard Time (IST, UTC+1) in summer.

Are there days when the difference is not 4 or 5 hours?

Yes, for a brief window each spring and autumn the two cities can switch DST on different dates, making the difference temporarily 3 or 6 hours. The live tool always shows the exact offset for right now.

Does the clock use my local computer time?

Yes, it reads your device's system clock and then converts it to both timezones. If your device clock is accurate, both displayed times will be accurate.

Time Difference: New York to Dublin

Name: Time Difference: New York to Dublin
Availability: InStock
Author: Nham Vu

See the live current time in New York and Dublin side by side, with the exact hour offset updated every second.

New York

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EST / EDT

Dublin

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GMT / IST

Current Offset

Meeting Time Planner

Meeting hour in New York

New York overlap window

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Dublin overlap window

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Overlap assumes standard business hours: 9 AM–6 PM in both cities.

Summary

See the live current time in New York and Dublin side by side, with the exact hour offset updated every second.

How it works

Your browser reads the current UTC timestamp every second.
It converts that timestamp into America/New_York local time using the Intl API.
It converts the same timestamp into Europe/Dublin local time.
Both clocks and the computed hour offset are rendered live on screen.
The offset adjusts automatically when either city switches to or from daylight saving time.

Use cases

Schedule a call or meeting between New York and Dublin colleagues.
Check whether Dublin business hours overlap with New York office hours.
Verify the current UTC offset for EST, EDT, GMT, or IST.
Quickly confirm whether Dublin is 4 or 5 hours ahead of New York today.
Help remote teams plan across the Atlantic time gap.
Double-check a flight arrival time in the other city.

Frequently Asked Questions

Last updated: 2026-06-09 · Reviewed by Nham Vu