Portsmouth, NH to Lisbon: time difference
Lisbon is 5 h ahead of Portsmouth, NH. Live clocks for both, the working hours they share, and how each one sits against your own time.
🇵🇹 Lisbon, Portugal
56
- Western European Summer Time
- UTC+1
- Golden hour
☀️ 07:50 · 🌙 18:54 · 11 h 4 min
+5 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Portsmouth, NH 03:29 3:29 AM Lisbon 08:29 8:29 AM You –:–
03:29 3:29 AM
Eastern Daylight Time · UTC-4
☀️ 07:02 · 🌙 17:55
08:29 8:29 AM
Western European Summer Time · UTC+1
☀️ 07:50 · 🌙 18:54
·
+5 h
Lisbon is 5 h ahead of Portsmouth, NH.
When you, Portsmouth, NH 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
🇺🇸 Portsmouth, NH
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
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 4 4 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇺🇸 Portsmouth, NH | 🇵🇹 Lisbon |
|---|---|---|
| Local time | 03:29 | 08:29 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 2026 |
| Time zone | Eastern Daylight Time | Western European Summer Time |
| UTC offset | UTC-4 | UTC+1 |
| Offset from Portsmouth, NH | — | +5 h |
| IANA zone | America/New York | Europe/Lisbon |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | On summer time → UTC+0, Oct 25, 01:00 |
| Sunrise | 07:02 | 07:50 |
| Sunset | 17:55 | 18:54 |
| Daylight | 10 h 54 min | 11 h 4 min |
| People on this clock | 95,535 | 545,923 |
Compare Portsmouth, NH with another city
More comparisons with Portsmouth, NH: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Portsmouth, NH and Lisbon: common questions
What is the time difference between Portsmouth, NH, and Lisbon?
Lisbon is 5 hours ahead: it uses UTC+1, while Portsmouth is on UTC−4.
What time is it in Lisbon at the start of the working day in Portsmouth, NH?
The working day in Portsmouth starts at 9:00 AM; in Lisbon it is 2:00 PM at that moment.
If it is 6:00 PM in Portsmouth, NH, what time is it in Lisbon?
At 6:00 PM in Portsmouth, clocks in Lisbon show 11:00 PM.
Is there a time when both Portsmouth, NH, and Lisbon are at work?
Yes: from 9:00 AM to 1:00 PM in Portsmouth (2:00 PM to 6:00 PM in Lisbon), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Lisbon compared with Portsmouth, NH?
The new day starts in Lisbon earlier: at 7:00 PM in Portsmouth it is already midnight there. Until 5:00 AM in Lisbon, Portsmouth is still on the previous day.
Is the time difference between Portsmouth, NH, and Lisbon the same all year?
No. Both places use summer time, but they switch on different dates, so for a while the gap changes. From October 25, 2026, Lisbon will be 4 hours ahead of Portsmouth.
