Lisbon to Princeton, NJ: time difference
Princeton, NJ is 5 h behind Lisbon. Live clocks for both, the working hours they share, and how each one sits against your own time.
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Lisbon 00:35 12:35 AM Princeton, NJ 19:35 7:35 PM You –:–
00:35 12:35 AM
Western European Summer Time · UTC+1
☀️ 07:42 · 🌙 19:06
19:35 7:35 PM
Eastern Daylight Time · UTC-4
☀️ 07:06 · 🌙 18:26
·
−5 h
Princeton, NJ is 5 h behind Lisbon.
When you, Lisbon and Princeton, NJ are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇵🇹 Lisbon
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
🇺🇸 Princeton, NJ
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 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇵🇹 Lisbon | 🇺🇸 Princeton, NJ |
|---|---|---|
| Local time | 00:35 | 19:35 |
| Local date | Monday, October 12, 2026 | Sunday, October 11, 2026 |
| Time zone | Western European Summer Time | Eastern Daylight Time |
| UTC offset | UTC+1 | UTC-4 |
| Offset from Lisbon | — | −5 h |
| IANA zone | Europe/Lisbon | America/New York |
| Daylight saving | On summer time → UTC+0, Oct 25, 01:00 | On summer time → UTC-5, Nov 1, 01:00 |
| Sunrise | 07:42 | 07:06 |
| Sunset | 19:06 | 18:26 |
| Daylight | 11 h 24 min | 11 h 21 min |
| People on this clock | 545,923 | 29,603 |
Compare Lisbon with another city
More comparisons with Lisbon: the time zones next to it and the far side of the clock.
Big time differences
Lisbon and Princeton, NJ: common questions
How far behind Lisbon is Princeton, NJ?
Princeton is 5 hours behind Lisbon: UTC−4 against UTC+1.
If it is 9:00 AM in Lisbon, what time is it in Princeton, NJ?
At 9:00 AM in Lisbon, clocks in Princeton show 4:00 AM.
What time is it in Princeton, NJ, at the end of the working day in Lisbon?
The working day in Lisbon ends at 6:00 PM; in Princeton it is 1:00 PM at that moment.
Is there a time when both Lisbon and Princeton, NJ, are at work?
Yes: from 2:00 PM to 6:00 PM in Lisbon (9:00 AM to 1:00 PM in Princeton), the working days (9:00 AM–6:00 PM) overlap.
Until what time in Lisbon is it still yesterday in Princeton, NJ?
Before 5:00 AM in Lisbon, the date in Princeton has not changed yet. From 7:00 PM in Princeton, it is already the next day in Lisbon.
Does the time gap between Lisbon and Princeton, NJ, change during the year?
Yes, because the clocks in Lisbon and in Princeton change on different dates. Next change: from October 25, 2026, Princeton will be 4 hours behind Lisbon.
