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GMT to PST Converter – Convert GMT to Pacific Time

Select your time and date, then see the conversion instantly
Example: When it's 9:00 AM in GMT, it's:
1:00 AMPST (UTC-8)
PST is 8 hours behind GMT during standard time.
Same-day example conversion

Quick Reference: PST is 8 hours behind GMT (PDT during daylight saving).

Common GMT to PST Conversions:
00:00 GMT = 16:00 PST (prev day) | 06:00 GMT = 22:00 PST (prev day) | 09:00 GMT = 01:00 PST | 12:00 GMT = 04:00 PST | 15:00 GMT = 07:00 PST | 18:00 GMT = 10:00 PST

Related conversions: PST to GMT, UTC to PST, EST to PST, CST to PST, IST to PST, JST to PST

Quick Time Zone Conversions

GMT IST GMT EST GMT UTC GMT CST GMT MST EST PST UTC EST EST IST PST IST IST GMT

Complete Timezone Conversion Tables

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Every popular timezone pair - EST, PST, GMT, IST, JST and more

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Time Offset
−8h
−7h when PST → PDT (Mar–Nov)
Date Line Crossover
Before 8:00 AM GMT
PST shows the previous calendar day
Daylight Saving
GMT: no DST - always UTC+0
PST: Mar–Nov
Best Meeting Window
6–8 PM GMT
= 10:00 AM–12:00 PM PST

Complete GMT ↔ PST Conversion Table

All 24 hours · Both DST seasons · Best meeting windows marked ★

Best overlap Next day in PST
GMT Time PST Standard Season  UTC+0
Standard  ·  UTC+0 → UTC−8  (−8h)		 PDT Daylight Season  PDT
Daylight  ·  UTC+0 → PDT  (−7h)
12:00 AM (midnight)prev 4:00 PMprev 5:00 PM
1:00 AMprev 5:00 PMprev 6:00 PM
2:00 AMprev 6:00 PMprev 7:00 PM
3:00 AMprev 7:00 PMprev 8:00 PM
4:00 AMprev 8:00 PMprev 9:00 PM
5:00 AMprev 9:00 PMprev 10:00 PM
6:00 AMprev 10:00 PMprev 11:00 PM
7:00 AMprev 11:00 PM12:00 AM
8:00 AM12:00 AM1:00 AM
9:00 AM1:00 AM2:00 AM
10:00 AM2:00 AM3:00 AM
11:00 AM3:00 AM4:00 AM
12:00 PM (noon)4:00 AM5:00 AM
1:00 PM5:00 AM6:00 AM
2:00 PM6:00 AM7:00 AM
3:00 PM7:00 AM8:00 AM
★ 4:00 PM8:00 AM★ 9:00 AM
5:00 PM9:00 AM10:00 AM
6:00 PM10:00 AM11:00 AM
7:00 PM11:00 AM12:00 PM
8:00 PM12:00 PM1:00 PM
9:00 PM1:00 PM2:00 PM
10:00 PM2:00 PM3:00 PM
11:00 PM3:00 PM4:00 PM
★ Best overlap: 6–8 PM GMT / = 10:00 AM–12:00 PM PST

What is the time difference between GMT and PST?

PST is 8 hours behind GMT. Both regions observe Daylight Saving Time, so the gap stays close to 8 hours year-round. 9:00 AM GMT = 1:00 AM PST. 12:00 PM GMT = 4:00 AM PST. 5:00 PM GMT = 9:00 AM PST.

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

There is no 9-to-5 business hours overlap between GMT and PST. The typical compromise is early morning GMT: 8:00 AM GMT (12:00 AM PST), or late evening GMT: 6:00 PM GMT (10:00 AM PST). One side will be outside normal hours, so teams usually rotate who takes the off-hours call.

Frequently Asked Questions about GMT and PST

PST is 8 hours behind GMT, so to convert mentally, subtract 8 hours to your GMT time. For example: 9:00 AM GMT = 1:00 AM PST. Our converter automatically adjusts for Daylight Saving Time so you always get the right result.

PST (Pacific Standard Time, UTC-8) is 8 hours behind GMT (Greenwich Mean Time, UTC+0) during standard time. For example, 9:00 AM GMT = 1:00 AM PST. During DST periods, this difference changes by 1 hour when one or both zones observe Daylight Saving Time - our converter automatically applies the correct offset for any date you select.

GMT is 8 hours behind PST, so standard 9–5 business hours do not overlap. The most practical window is late afternoon in GMT (5–7 PM), which falls in the morning in PST - for example, 5:00 PM GMT = 9:00 AM PST. Use our meeting planner to find the exact time for your date, especially around DST transitions.

Yes. GMT (Greenwich Mean Time) observes Daylight Saving Time. Clocks spring forward to BST (UTC+1) on the last Sunday in March, and fall back to GMT on the last Sunday in October. During the DST period, the difference with PST changes by 1 hour. In summer the UK switches to BST (British Summer Time, UTC+1). The GMT label itself never changes; it always means UTC+0. Our converter always uses the current offset for the date you select.

Major cities in the GMT (Greenwich Mean Time, UTC+0) timezone include: London (winter), Dublin (winter), Edinburgh, Reykjavik, Accra, Dakar. These cities switch to BST (UTC+1) from the last Sunday in March to the last Sunday in October.

Major cities in the PST (Pacific Standard Time, UTC-8) timezone include: Los Angeles, San Francisco, Seattle, Portland, Las Vegas, Vancouver. These cities switch to PDT (UTC-7) from the second Sunday in March to the first Sunday in November.

PST is 8 hours behind GMT. Because GMT and PST are 8 hours apart, there is no standard business-hour overlap - plan for one side to take an early morning or late evening call. Always include both local times in calendar invites (for example, "2:00 PM GMT / 6:00 AM PST PST"). Double-check around March and November (or March/October for European zones) when DST transitions can shift the offset by 1 hour. For full scheduling guidance, see our international meeting times guide.

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