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 in Los Angeles, it's 7:00 PM GMT

On Jan 1 – Mar 7, 2026; Nov 1, 2026 – Mar 13, 2027; Nov 7 – Dec 31, 2027: 8:00 PM GMT.

PT UTC-8 / UTC-7 GMT UTC±0 +7/+8h

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.

Los Angeles (PT)	GMT (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

These times apply on all dates in 2026–2027 except:

Jan 1 – Mar 7, 2026; Nov 1, 2026 – Mar 13, 2027; Nov 7 – Dec 31, 2027: GMT times are 1 hour later.

Best Meeting Window

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

12a

12p

Los Angeles

GMT

Overlap

Everyone available

Most available

Some overlap

Outside work hours

1 9:00 AM -- 10:00 AM in Los Angeles

Los Angeles: 9:00 AM GMT: 4:00 PM

All members within working hours. Everyone in mid-day range.

7.8 / 10

2 10:00 AM -- 11:00 AM in Los Angeles

Los Angeles: 10:00 AM GMT: 5:00 PM

All members within working hours. 1 in mid-day range (9 AM–5 PM).

7.7 / 10

3 1:00 PM -- 2:00 PM in Los Angeles

Los Angeles: 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.

6.6 / 10

These times apply on all dates in 2026–2027 except:

Jan 1 – Mar 7, 2026; Nov 1, 2026 – Mar 13, 2027; Nov 7 – Dec 31, 2027: GMT times are 1 hour later.

Try the Meeting Planner with custom work hours →

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

The PT to GMT gap is +7h or +8h, depending on daylight saving time. The table lists each period.

Dates	Los Angeles	GMT	Difference
Jan 1 – Mar 7, 2026	UTC-8	UTC±0	+8h
Mar 8 – Oct 31, 2026	UTC-7	UTC±0	+7h
Nov 1, 2026 – Mar 13, 2027	UTC-8	UTC±0	+8h
Mar 14 – Nov 6, 2027	UTC-7	UTC±0	+7h
Nov 7 – Dec 31, 2027	UTC-8	UTC±0	+8h

GMT does not use daylight saving time.

UK clocks use BST (UTC+1) from the last Sunday in March to the last Sunday in October.

Use the interactive converter for a specific date.

Major Cities

Pacific Time (PT)

Los Angeles
San Francisco
Seattle

Greenwich Mean Time (GMT)

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 PST, it is 5:00 PM GMT. From mid-March to early November, Los Angeles uses PDT (UTC-7), so the gap to GMT is 7 hours.

When does the PST-GMT offset change?

GMT never changes, so the offset changes only on US dates. The US springs forward to PDT (UTC-7) on the second Sunday in March, shrinking the gap to 7 hours. The US falls back to PST on the first Sunday in November, and the gap returns to 8 hours. London time is different: UK clocks use BST in summer, so Los Angeles and London stay 8 hours apart for most of the year.

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 Los Angeles-London calls 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.