How many hours ahead is Lisbon compared to New York?

Lisbon is typically 5 hours ahead of New York. New York observes Eastern Standard Time (EST, UTC-5) in winter and Eastern Daylight Time (EDT, UTC-4) in summer. Lisbon observes Western European Time (WET, UTC+0) in winter and Western European Summer Time (WEST, UTC+1) in summer. Both cities observe daylight saving time, and their clocks usually change on similar schedules, keeping the gap at 5 hours for most of the year. During the brief transition windows the difference can temporarily be 4 or 6 hours.

Does this tool account for daylight saving time?

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

What time zones are New York and Lisbon in?

New York observes Eastern Standard Time (EST, UTC-5) in winter and Eastern Daylight Time (EDT, UTC-4) in summer. Lisbon observes Western European Time (WET, UTC+0) in winter and Western European Summer Time (WEST, UTC+1) in summer.

What are the overlapping business hours between New York and Lisbon?

Assuming standard 9 AM–6 PM working hours and a 5-hour offset, the overlap is typically 9 AM–1 PM New York time and 2 PM–6 PM Lisbon time. This gives roughly 4 hours of shared working time each weekday.

Does the clock use my local computer time?

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

Time Difference: New York to Lisbon

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

See live clocks for New York and Lisbon side by side, with the exact hour offset and a converter to translate any New York time into Lisbon local time.

New York

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EST / EDT

Lisbon

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WET / WEST

Current Offset

Convert a New York Time to Lisbon

Enter any time in New York and see the equivalent Lisbon local time.

New York time

Overlapping Business Hours

New York window

9 AM – 1 PM ET

Lisbon window

2 PM – 6 PM WET/WEST

Standard overlap assumes Lisbon 9 AM–6 PM and New York 9 AM–6 PM working days.

Summary

See live clocks for New York and Lisbon side by side, with the exact hour offset and a converter to translate any New York time into Lisbon local time.

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/Lisbon local time.
Both live clocks and the current offset are displayed and updated automatically.
The offset adjusts on its own whenever either city switches to or from daylight saving time.
Enter a New York time in the converter to see the equivalent Lisbon local time.

Use cases

Schedule a video call between New York and Lisbon colleagues.
Check whether Lisbon business hours overlap with New York office hours.
Verify the current UTC offset for ET, WET, or WEST.
Find out what time a 9 AM New York meeting is in Lisbon.
Help remote teams plan across the US–Portugal time difference.
Double-check a flight arrival time when traveling between the two cities.
Confirm the exact gap during the brief DST transition windows.

Frequently Asked Questions

Last updated: 2026-06-11 · Reviewed by Nham Vu