Current Time in Portsmouth
United Kingdom
Portsmouth runs on official UK time, so there is nothing to convert - if you know the time in Portsmouth, you know the time across the whole country.
Today in Portsmouth
UK time (—)
UK local time
UK local time
Sunrise to sunset
Next change to — on —
Portsmouth today, at a glance
The sun rises in Portsmouth at — and sets at — today, giving a day length of about —. The UK is currently on BST (British Summer Time), with the next clock change to GMT due on Sunday, 25 October 2026. Tonight's moon is a new moon, 1% illuminated. Sunrise, sunset and moon figures are calculated from Portsmouth's coordinates using standard astronomical calculations, and update automatically each day.
Time difference from the UK
Portsmouth keeps the same time as the rest of the UK - Greenwich Mean Time (GMT) in winter and British Summer Time (BST) in summer - so there is no time difference at all between Portsmouth and the UK. Whatever the UK time is, that is the time in Portsmouth.
Best time to call
Because Portsmouth is on UK time, there is no need to plan around a time difference. Any time that suits you in the UK will match Portsmouth exactly.
Good to know
- Portsmouth and the rest of the UK move their clocks together, so the switch between GMT and BST never creates a gap between Portsmouth and elsewhere in the country.
- Portsmouth is a historic naval city on the south coast of England, home to the world's first modern public time signal.
Frequently asked questions
What is the time difference between the UK and Portsmouth?
There is none. Portsmouth is in the UK, so its clock is always the same as UK time, whether that is GMT in winter or BST in summer.
Is Portsmouth ahead of or behind London?
Neither - Portsmouth keeps identical time to London and the rest of the UK all year round.