GMT to PST Converter

Greenwich Mean Time → Pacific Standard Time · GMT is 8 hours ahead of PST

GMT
—
PST
—

GMT and PST are the same time

GMT to PST Conversion Table

GMTPST
12:00 AM12:00 AM
1:00 AM1:00 AM
2:00 AM2:00 AM
3:00 AM3:00 AM
4:00 AM4:00 AM
5:00 AM5:00 AM
6:00 AM6:00 AM
7:00 AM7:00 AM
8:00 AM8:00 AM
9:00 AM9:00 AM
10:00 AM10:00 AM
11:00 AM11:00 AM
12:00 PM12:00 PM
1:00 PM1:00 PM
2:00 PM2:00 PM
3:00 PM3:00 PM
4:00 PM4:00 PM
5:00 PM5:00 PM
6:00 PM6:00 PM
7:00 PM7:00 PM
8:00 PM8:00 PM
9:00 PM9:00 PM
10:00 PM10:00 PM
11:00 PM11:00 PM

Green rows = business hours overlap (9:00 AM – 6:00 PM GMT)

Major GMT Cities
  • London
  • Dublin
  • Lisbon
  • Reykjavik
  • Accra
  • Dakar
Major PST Cities
  • Los Angeles, CA
  • San Francisco, CA
  • Seattle, WA
  • Portland, OR
  • Las Vegas, NV
  • San Diego, CA
Time Converter
Convert any two cities
Meeting Planner
Find the best overlap time
World Clock
Current time in 400+ cities

GMT vs PST — What You Need to Know

GMT (Greenwich Mean Time) is UTC+0, the baseline world time. London uses GMT in winter and BST (UTC+1) in summer from late March to late October.

PST (Pacific Standard Time) is UTC-8, used by the US West Coast in winter. From March to November, it shifts to PDT (UTC-7).

The London–Los Angeles corridor is one of the most important in global tech and finance. The optimal meeting window is 4:00–6:00 PM London time / 8:00–10:00 AM Los Angeles time.

Frequently Asked Questions

How many hours is GMT ahead of PST?

GMT is 8 hours ahead of PST (Pacific Standard Time, UTC-8) during winter. During US Pacific Daylight Time (PDT, UTC-7), GMT is 7 hours ahead. During UK summer (BST, UTC+1), the gap changes further — BST is 8 hours ahead of PST and 9 hours ahead during PDT.

What is 9 AM GMT in PST?

9:00 AM GMT is 1:00 AM PST (UTC-8) in winter. During PDT (US summer), 9:00 AM GMT is 2:00 AM PDT. This large gap makes London–West Coast scheduling challenging — the best overlap window is 4:00–6:00 PM GMT / 8:00–10:00 AM PST.

What is the time difference between London and Los Angeles?

In winter (GMT vs PST), London is 8 hours ahead of Los Angeles. In summer, when the US uses PDT (UTC-7) and the UK uses BST (UTC+1), the gap narrows to 8 hours. During the brief DST transition windows (when one country has changed clocks but not the other), the difference can be 7 or 9 hours.

What is the best time to call Los Angeles from London?

The best time to call Los Angeles from London is between 4:00 PM and 7:00 PM GMT/BST, which is 8:00 AM–11:00 AM PST/PDT in LA. This gives you a morning window on the West Coast while still being business hours in London.