PST to GMT
+8hPST
PSTSOURCEGMT
GMTGreen rows indicate typical business hours (9 AM - 5 PM)
PST and GMT on the World Map
The map below highlights the PST (Pacific Standard Time) and GMT (Greenwich Mean Time) timezone regions across the globe.
PST – Pacific Standard Time
UTC-08:00Pacific Standard Time (PST) is the time zone for the US and Canadian Pacific coast, 8 hours behind UTC.
- •Silicon Valley and the world's biggest tech companies operate on Pacific Time.
- •The Hollywood film industry runs on PST/PDT.
- •PST is 3 hours behind EST, creating a significant business hours gap.
- •Vancouver, Canada's third-largest city, uses PST.
GMT – Greenwich Mean Time
UTC+00:00Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory in Greenwich, London. It is the same as UTC+00:00.
- •GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London.
- •The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
- •GMT and UTC are often used interchangeably, but UTC is based on atomic clocks.
- •Iceland uses GMT year-round and never observes daylight saving time.
- •The UK switches from GMT to BST (British Summer Time) in late March each year.
Everything You Need to Know About PST and GMT Time
PST runs on Pacific Standard Time (PST) at UTC-08:00. GMT runs on Greenwich Mean Time (GMT) at UTC+00:00. That puts PST 8 hours ahead of GMT — a difference of +8h at the current offsets.
In practice, when it is 9:00 AM in PST it is 5:00 PM in GMT. Midnight in PST is 8:00 AM in GMT. Neither zone observes daylight saving time, so the offset between them stays constant all year.
PST to GMT time conversion table
| PST (PST) | GMT (GMT) | Day |
|---|---|---|
| 12:00 AM | 8:00 AM | same day |
| 6:00 AM | 2:00 PM | same day |
| 7:00 AM | 3:00 PM | same day |
| 8:00 AM | 4:00 PM | same day |
| 9:00 AM | 5:00 PM | same day |
| 12:00 PM | 8:00 PM | same day |
| 3:00 PM | 11:00 PM | same day |
| 5:00 PM | 1:00 AM | next day |
| 6:00 PM | 2:00 AM | next day |
| 9:00 PM | 5:00 AM | next day |
Why people convert PST to GMT time
- Scheduling a call from PST to GMT: a 10:00 AM start in PST lands at 6:00 PM in GMT, so you can confirm the slot without doing the arithmetic yourself.
- Handling a +8h gap: PST and GMT have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in GMT is 5:00 PM in PST.
- Coordinating a PST-based team with GMT contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.
- Always state the zone abbreviation, not just the hour. "3:00 PM PST" is unambiguous; "3 PM" across a +8h gap is not.
- With a +8h gap there is no shared 9-to-5 window, so alternate the early start: one week PST takes the early slot, the next week GMT does.
About PST (Pacific Standard Time)
Pacific Standard Time (PST) covers the west coast of North America, including tech hubs like San Francisco and Seattle, and entertainment capital Los Angeles. The Pacific Time Zone is home to Silicon Valley and the world's largest technology companies. During summer, clocks advance to Pacific Daylight Time (PDT, UTC-07:00). PST is also observed in Baja California, Mexico.
About GMT (Greenwich Mean Time)
Greenwich Mean Time (GMT) is the clock time at the Royal Observatory in Greenwich, London, which sits on the Prime Meridian (0° longitude). GMT serves as the reference point from which all other time zones are calculated. The United Kingdom uses GMT during winter months and switches to British Summer Time (BST, UTC+01:00) from late March to late October. Several West African nations use GMT year-round. GMT is often used interchangeably with UTC (Coordinated Universal Time), although technically they are different – UTC is based on atomic clocks while GMT is based on Earth's rotation.
Best time to call between PST and GMT
With a +8h offset there is no overlap inside a normal 9 AM – 5 PM day. GMT opens at 9:00 AM GMT, which is 5:00 PM in PST, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
PST and GMT have no shared working hours because of the +8h gap. Teams need to alternate early starts or rely on asynchronous handovers.
PST is 8 hours ahead of GMT (PST UTC-08:00 → GMT UTC+00:00). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
PST
☀ Currently in DST
Standard: UTC-08:00 · DST: UTC-07:00
Clocks fall back on Sun, Nov 1, 2026
GMT
☀ Currently in DST
Standard: UTC+00:00 · DST: UTC+01:00
Clocks fall back on Sun, Oct 25, 2026
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between PST and GMT?
PST (PST, UTC-08:00) is 8 hours ahead of GMT (GMT, UTC+00:00). The gap is currently +8h.
How do I convert PST time to GMT time?
Add +8h to PST local time. For example, 9:00 AM in PST is 5:00 PM in GMT.
What time is it in GMT right now?
GMT uses GMT at UTC+00:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +8h offset from PST.
What is the best time to call GMT from PST?
There is no shared working-hours window because of the +8h gap. The closest option is 1:00 PM in PST, which is 9:00 PM in GMT.
Which is ahead, PST or GMT?
PST is 8 hours ahead of GMT. When it is 12:00 PM in PST it is 8:00 PM in GMT.
Does daylight saving time affect the PST–GMT difference?
Neither zone observes daylight saving time, so the +8h offset between PST and GMT is fixed all year.
Which other cities share PST's time zone?
PST also covers Los Angeles, San Francisco, Seattle, Vancouver, San Diego, Portland, Las Vegas, Sacramento and 2 more.
Which countries use PST, PST's zone?
PST is used in United States (Pacific), Canada (British Columbia), Mexico (Baja California).
Is there a day difference between PST and GMT?
Not normally. The +8h gap only pushes the date over for late-evening times.
What is the time difference between PST and GMT?
GMT is +8h from PST.
What timezone is PST in?
PST operates on its local timezone.
What timezone is GMT in?
GMT operates on its local timezone.
Which countries use PST (Pacific Standard Time)?
PST is used in United States (Pacific), Canada (British Columbia), Mexico (Baja California).
Does PST observe daylight saving time?
Yes, PST switches to PDT during summer months.
What are some interesting facts about PST?
Silicon Valley and the world's biggest tech companies operate on Pacific Time. The Hollywood film industry runs on PST/PDT.
Which cities are in the GMT timezone?
Major cities in the GMT timezone include London, Dublin, Lisbon, Accra, Reykjavik, Edinburgh, Casablanca, Dakar.
What is the UTC offset for GMT?
Greenwich Mean Time (GMT) is at UTC+00:00. During daylight saving time, it shifts to BST.
What should I know about the GMT timezone?
GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London. The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
When is it midnight in PST, what time is it in GMT?
When it is 12:00 AM (midnight) in PST (PST), it is +8h later in GMT (GMT).
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See every conversion from PST →·See every conversion from GMT →