Port Jefferson Station, NY to Lisbon: time difference
Lisbon is 4 h ahead of Port Jefferson Station, NY. Live clocks for both, the working hours they share, and how each one sits against your own time.
🇵🇹 Lisbon, Portugal
02
- Western European Standard Time
- UTC+0
- Daytime
☀️ 06:59 · 🌙 17:43 · 10 h 43 min
+4 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Port Jefferson Station, NY 10:23 10:23 AM Lisbon 14:23 2:23 PM You –:–
10:23 10:23 AM
Eastern Daylight Time · UTC-4
☀️ 07:19 · 🌙 17:55
14:23 2:23 PM
Western European Standard Time · UTC+0
☀️ 06:59 · 🌙 17:43
·
+4 h
Lisbon is 4 h ahead of Port Jefferson Station, NY.
When you, Port Jefferson Station, NY and Lisbon are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇺🇸 Port Jefferson Station, NY
0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM
🇵🇹 Lisbon
4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM 0 12 AM 1 1 AM 2 2 AM 3 3 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇺🇸 Port Jefferson Station, NY | 🇵🇹 Lisbon |
|---|---|---|
| Local time | 10:23 | 14:23 |
| Local date | Wednesday, October 28, 2026 | Wednesday, October 28, 2026 |
| Time zone | Eastern Daylight Time | Western European Standard Time |
| UTC offset | UTC-4 | UTC+0 |
| Offset from Port Jefferson Station, NY | — | +4 h |
| IANA zone | America/New York | Europe/Lisbon |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | On standard time → UTC+1, Mar 28, 02:00 |
| Sunrise | 07:19 | 06:59 |
| Sunset | 17:55 | 17:43 |
| Daylight | 10 h 36 min | 10 h 43 min |
| People on this clock | 8,000 | 545,923 |
Compare Port Jefferson Station, NY with another city
More comparisons with Port Jefferson Station, NY: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Port Jefferson Station, NY and Lisbon: common questions
How many hours ahead of Port Jefferson Station, NY, is Lisbon?
The clocks in Lisbon are 4 hours ahead of those in Port Jefferson Station (UTC+0 and UTC−4).
What time is it in Lisbon at the start of the working day in Port Jefferson Station, NY?
The working day in Port Jefferson Station starts at 9:00 AM; in Lisbon it is 1:00 PM at that moment.
What time is it in Lisbon at the end of the working day in Port Jefferson Station, NY?
The working day in Port Jefferson Station ends at 6:00 PM; in Lisbon it is 10:00 PM at that moment.
Is there a time when both Port Jefferson Station, NY, and Lisbon are at work?
Yes: from 9:00 AM to 2:00 PM in Port Jefferson Station (1:00 PM to 6:00 PM in Lisbon), the working days (9:00 AM–6:00 PM) overlap.
When is it already the next day in Lisbon?
From 8:00 PM in Port Jefferson Station, NY, it is already the next day in Lisbon. The other way round, until 4:00 AM in Lisbon it is still the previous day in Port Jefferson Station.
Does the time difference between Port Jefferson Station, NY, and Lisbon change?
Yes. Both places change their clocks, but on different dates. From November 1, 2026, Lisbon will be 5 hours ahead of Port Jefferson Station.
