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Convert PT to GMT

Pacific Time (PT) to Greenwich Mean Time (GMT)

West Coast tech companies, gaming studios, and creative agencies with UK clients or London offices search this regularly. The 8-hour gap is substantial — by the time Los Angeles starts work, London is already heading home.

When it's 12:00 PM PT, it's 7:00 PM GMT

UTC-7 UTC±0 +7 hours

Interactive Converter

Pick any time and date to convert between PT and GMT.

PT to GMT Conversion Table

Full 24-hour comparison. Business hours (9 AM -- 6 PM) are highlighted.

PT GMT
12:00 AM 7:00 AM
1:00 AM 8:00 AM
2:00 AM 9:00 AM
3:00 AM 10:00 AM
4:00 AM 11:00 AM
5:00 AM 12:00 PM
6:00 AM 1:00 PM
7:00 AM 2:00 PM
8:00 AM 3:00 PM
9:00 AM 4:00 PM
10:00 AM 5:00 PM
11:00 AM 6:00 PM
12:00 PM 7:00 PM
1:00 PM 8:00 PM
2:00 PM 9:00 PM
3:00 PM 10:00 PM
4:00 PM 11:00 PM
5:00 PM 12:00 AM +1 day
6:00 PM 1:00 AM +1 day
7:00 PM 2:00 AM +1 day
8:00 PM 3:00 AM +1 day
9:00 PM 4:00 AM +1 day
10:00 PM 5:00 AM +1 day
11:00 PM 6:00 AM +1 day

Best Meeting Window

Top meeting times for teams in PT and GMT (9 AM -- 6 PM work hours, 1-hour meeting).

12a
3a
6a
9a
12p
3p
6p
9p
PT PDT
GMT GMT
Overlap
Everyone available
Most available
Some overlap
Outside work hours
1 9:00 AM -- 10:00 AM PT
PT: 9:00 AM GMT: 4:00 PM

All members within working hours. Everyone in mid-day range. Note: 1 timezone(s) have a DST transition within 14 days.

7.3 / 10
2 10:00 AM -- 11:00 AM PT
PT: 10:00 AM GMT: 5:00 PM

All members within working hours. 1 in mid-day range (9 AM–5 PM). Note: 1 timezone(s) have a DST transition within 14 days.

7.2 / 10
3 1:00 PM -- 2:00 PM PT
PT: 1:00 PM GMT: 8:00 PM

1 of 2 members within working hours. 1 in mid-day range (9 AM–5 PM). Outside work hours for GMT. Note: 1 timezone(s) have a DST transition within 14 days.

6.1 / 10

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Scheduling Tips

  • Start meetings at 7:00-8:00 AM PST / 3:00-4:00 PM GMT. This is early for the West Coast but the only reliable overlap window.
  • During the March and October DST transition weeks, verify your recurring meeting times — they may shift by 1 hour unexpectedly.
  • For async collaboration, have UK team members post end-of-day updates by 5:00 PM GMT so the PST team can pick up at 9:00 AM their time.

Time Difference & DST

GMT is 7 hours ahead of PT. PT is at UTC-7 and GMT is at UTC±0.

Upcoming DST Transitions:

PT Clocks fall back on November 2, 2026
GMT Clocks spring forward on March 30, 2026

The conversion table above reflects the current DST state at build time. Use the interactive converter for live, date-specific conversions.

Major Cities

Pacific Time (PT)

  • Los Angeles
  • San Francisco
  • Seattle

Greenwich Mean Time (GMT)

  • London
  • Manchester
  • Birmingham

Frequently Asked Questions

What is the time difference between PST and GMT?
PST (Pacific Standard Time, UTC-8) is 8 hours behind GMT (UTC+0). When it is 9:00 AM in Los Angeles, it is 5:00 PM in London. During daylight saving periods, the gap varies depending on which side has shifted.
When does the PST-GMT offset change?
The US springs forward to PDT (UTC-7) on the second Sunday in March, shrinking the gap to 7 hours. The UK then moves to BST (UTC+1) on the last Sunday in March, widening the gap to 8 hours again. In fall, the UK reverts on the last Sunday of October (gap becomes 7 hours for ~1 week), then the US reverts on the first Sunday of November (gap returns to 8 hours).
What is 9 AM PST in GMT?
9:00 AM PST is 5:00 PM GMT. This is the very end of the London workday, making it the latest practical meeting time for UK colleagues.
What is 7 AM PST in GMT?
7:00 AM PST is 3:00 PM GMT. This gives 2 hours of overlap before the UK workday ends. Early-riser PST meetings maximize transatlantic collaboration time.
What is noon GMT in PST?
12:00 PM (noon) GMT is 4:00 AM PST. London's lunchtime falls in the middle of the night on the US West Coast. Morning GMT meetings happen while LA sleeps.
What is the best meeting time for PST and GMT?
The only practical window is 7:00-9:00 AM PST / 3:00-5:00 PM GMT. This requires early mornings on the West Coast but catches the tail end of the UK workday.
Is GMT the same as UK time year-round?
No. GMT (UTC+0) applies only during winter (late October to late March). In summer, the UK uses BST (British Summer Time, UTC+1). When people say 'GMT' casually they often mean 'UK time,' which shifts seasonally.
What happens to PST-GMT during DST transition weeks?
In spring, the US shifts to PDT 2-3 weeks before the UK shifts to BST. During that window the gap is 7 hours instead of 8. In fall, the UK reverts to GMT about 1 week before the US reverts to PST, briefly shrinking the gap to 7 hours again.

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