Live offset · Year-round DST · Shareable URL

Time difference
London and Seattle

Live clocks (GMT ↔ PST), the current gap, month-by-month offset changes, and a full 24-hour map from London to Seattle.

1

Live gap

See the current offset between London and Seattle, with IANA-backed clocks updating every second.

2

Year-round chart

DST can shift the gap by an hour twice a year—the 2026 month table shows every change.

3

Hour-by-hour

Scroll the 24-hour table to map any civil hour in London into Seattle with day-shift cues.

Time difference workspace

How London and Seattle line up today.

2 cities · live offsetGap shifts yearly
City pair

London Seattle

Seattle is 8h behind London at this moment. Compare live clocks, seasonal DST shifts, and hour-by-hour conversions below.

Live offsetIANA zones · updates automatically
London
Europe/London
ZoneGMT / BST
Offset nowUTC+1
Hour gap
−8h

SeattleLondon

Seattle
America/Los_Angeles
ZonePST / PDT
Offset nowUTC-7
About this pairUseful when planning calls or docs

Time difference between London and Seattle: Seattle is currently 8 hours behind London.

The gap between clocks stays steady through the year for this pair, even when London or Seattle (or both) shift for Daylight Saving—transition timing lines up so the delta does not move. The monthly table below shows the exact offset gap month by month. For practical scheduling, jump to the best-time-to-meet page or the 24-hour conversion table below.

Jump aheadPick the view you need next
Best time to meetMonthly offsets24-hour table
Live clocks workspace

Clocks side by side.

Updates every second
Right nowEurope/London · America/Los_Angeles
London
Europe/London
Live time
--:--
OffsetUTC+1
AbbreviationGMT / BST
Observes DST
Seattle
America/Los_Angeles
Live time
--:--
OffsetUTC-7
AbbreviationPST / PDT
Observes DST
Relationship

Seattle is 8h behind London.

DST rules can widen or shrink this gap for a few weeks each spring and autumn—the month table below shows how many hours Seattle sits ahead of or behind London through the calendar year.

Next stepsPlan overlap or convert zones
Best time to meet →GMT → PST →Overlap Finder →
Year-round

Offset changes by month

Sampled mid-month for 2026. Compares Seattle versus London; a value of +3h means Seattle is three hours ahead of London.

2026 calendar

Month-by-month gap

MonthDifference (Seattle vs London)
January-8h
February-8h
March-7h
April-8h
May-8h
June-8h
July-8h
August-8h
September-8h
October-8h
November-8h
December-8h
Hour by hour

24-hour conversion table

Every civil hour in London mapped into Seattle; day-shift cues follow active DST for both zones today.

LondonSeattle

Hourly wall-clock map for today — midnight crossings show as day shifts.

London with part-of-day icon
Seattle arrow and converted time
Day
  • 00:00
    16:00
    Prev day
  • 01:00
    17:00
    Prev day
  • 02:00
    18:00
    Prev day
  • 03:00
    19:00
    Prev day
  • 04:00
    20:00
    Prev day
  • 05:00
    21:00
    Prev day
  • 06:00
    22:00
    Prev day
  • 07:00
    23:00
    Prev day
  • 08:00
    00:00
    Same day
  • 09:00
    01:00
    Same day
  • 10:00
    02:00
    Same day
  • 11:00
    03:00
    Same day
  • 12:00
    04:00
    Same day
  • 13:00
    05:00
    Same day
  • 14:00
    06:00
    Same day
  • 15:00
    07:00
    Same day
  • 16:00
    08:00
    Same day
  • 17:00
    09:00
    Same day
  • 18:00
    10:00
    Same day
  • 19:00
    11:00
    Same day
  • 20:00
    12:00
    Same day
  • 21:00
    13:00
    Same day
  • 22:00
    14:00
    Same day
  • 23:00
    15:00
    Same day
Uses your browser's IANA zone data — choose another date in the converter for historical or future days.
Keep exploring

Related pages

More time-difference routes, pairwise best times, triple-city overlaps, and conversions tied to London, Seattle, or this corridor.

FAQ

Frequently asked questions

Offsets between London and Seattle, DST shifts, scheduling, and how we source timezone data—plus how to share this page.

Currently, Seattle is 8h behind London. This may change through the year if either city observes Daylight Saving Time.