Portsmouth to London time
Portsmouth: 15:14. London: 20:14.
5 hours difference.
Eastern Standard Time (EST, UTC-5)
Current local time: 15:14
Next DST change: 2027-03-14 - UTC-4.
Greenwich Mean Time (GMT, UTC)
Current local time: 20:14
Next DST change: 2027-03-28 - UTC+1.
Common questions
Quick answers- 01What is the time difference between Portsmouth and London?
- London is 5 hours ahead of Portsmouth. The difference can change during the year if their clocks change on different dates.
- 02When is a good time to meet between Portsmouth and London?
- Start with 09:00-17:00 working hours in both places and use the overlap shown on this page.
- 03Do Portsmouth and London change their clocks on the same day?
- Check the daylight saving information on each city page, because clock changes can happen on different dates.