Time Difference Between Lisbon and Boston
Lisbon is 5 hours ahead of Boston. Live local times, working-hour overlap and a 24-hour meeting suitability table, computed from the IANA time zone database in your browser.
Best time to meet
On a normal weekday the two cities share 4 hours of overlapping working time: 14:00–18:00 in Lisbon, which is 09:00–13:00 in Boston. That is the window to protect for recurring meetings.
Next 24 hours
Scored against a 09:00–18:00 weekday working day in both cities. Updates live.
| Lisbon | Boston | Suitability |
|---|---|---|
| Loading live table… | ||
Lisbon working hours converted to Boston
| Lisbon time | Boston time |
|---|---|
| 09:00 | 04:00 |
| 10:00 | 05:00 |
| 12:00 | 07:00 |
| 14:00 | 09:00 |
| 16:00 | 11:00 |
| 18:00 | 13:00 |
Based on a 09:00–18:00 working day and today's UTC offsets (UTC+1 and UTC-4).
Frequently asked questions
What is the time difference between Lisbon and Boston?
Lisbon is 5 hours ahead of Boston: UTC+1 versus UTC-4. Both figures include any daylight saving currently in force.
What is the best time to call from Lisbon to Boston?
Aim for 14:00–18:00 in Lisbon, which lands at 09:00–13:00 in Boston. Both sides stay inside a normal working day.
Does the overlap between Lisbon and Boston change during the year?
Yes, whenever the two regions do not switch daylight saving on the same date — or one does not observe it at all. The window above is computed for today's rules; re-check it in the weeks after a clock change.