Lisbon to Cambridge, MA: time difference
Cambridge, MA 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 17:45 5:45 PM Cambridge, MA 12:45 12:45 PM You –:–
17:45 5:45 PM
Western European Summer Time · UTC+1
☀️ 07:49 · 🌙 18:56
12:45 12:45 PM
Eastern Daylight Time · UTC-4
☀️ 07:01 · 🌙 17:59
·
−5 h
Cambridge, MA is 5 h behind Lisbon.
When you, Lisbon and Cambridge, MA 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
🇺🇸 Cambridge, MA
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 | 🇺🇸 Cambridge, MA |
|---|---|---|
| Local time | 17:45 | 12:45 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 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 | 07:49 | 07:01 |
| Sunset | 18:56 | 17:59 |
| Daylight | 11 h 7 min | 10 h 58 min |
| People on this clock | 545,923 | 105,162 |
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 Cambridge, MA: common questions
What is the time difference between Lisbon and Cambridge, MA?
Cambridge is 5 hours behind: it uses UTC−4, while Lisbon is on UTC+1.
What time is it in Cambridge, MA, when it is 9:00 AM in Lisbon?
When it is 9:00 AM in Lisbon, it is 4:00 AM in Cambridge.
What time is it in Cambridge, MA, at the end of the working day in Lisbon?
The working day in Lisbon ends at 6:00 PM; in Cambridge it is 1:00 PM at that moment.
Is there a time when both Lisbon and Cambridge, MA, are at work?
Yes: from 2:00 PM to 6:00 PM in Lisbon (9:00 AM to 1:00 PM in Cambridge), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Cambridge, MA, compared with Lisbon?
The new day starts in Cambridge later: until 5:00 AM in Lisbon, it is still the previous day there. From 7:00 PM in Cambridge, Lisbon is already on the next day.
Is the time difference between Lisbon and Cambridge, MA, 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, Cambridge will be 4 hours behind Lisbon.
