GST to PST
-12hGST
GSTSOURCEPST
PSTGreen rows indicate typical business hours (9 AM - 5 PM)
GST and PST on the World Map
The map below highlights the GST (Gulf Standard Time) and PST (Pacific Standard Time) timezone regions across the globe.
GST – Gulf Standard Time
UTC+04:00Gulf Standard Time (GST) is used in the UAE, Oman, and other Gulf states, 4 hours ahead of UTC.
- •Dubai uses GST year-round with no daylight saving time.
- •GST is 9 hours ahead of EST and 4 hours ahead of GMT.
- •The Dubai Financial Market (DFM) operates on GST.
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.
Comparing Time Zones: GST and PST
GST runs on Gulf Standard Time (GST) at UTC+04:00. PST runs on Pacific Standard Time (PST) at UTC-08:00. That puts GST 12 hours behind PST — a difference of -12h at the current offsets.
In practice, when it is 9:00 AM in GST it is 9:00 PM in PST on the previous day. Midnight in GST is 12:00 PM in PST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
GST to PST time conversion table
| GST (GST) | PST (PST) | Day |
|---|---|---|
| 12:00 AM | 12:00 PM | previous day |
| 6:00 AM | 6:00 PM | previous day |
| 7:00 AM | 7:00 PM | previous day |
| 8:00 AM | 8:00 PM | previous day |
| 9:00 AM | 9:00 PM | previous day |
| 12:00 PM | 12:00 AM | same day |
| 3:00 PM | 3:00 AM | same day |
| 5:00 PM | 5:00 AM | same day |
| 6:00 PM | 6:00 AM | same day |
| 9:00 PM | 9:00 AM | same day |
Why people convert GST to PST time
- Scheduling a call from GST to PST: a 10:00 AM start in GST lands at 10:00 PM in PST the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -12h gap: GST and PST 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 PST is 9:00 PM in GST.
- Watching a live event or market open: GST viewers need 9:00 PM in PST to catch a 9:00 AM start there, and 12:00 PM if the event is anchored to GST.
- Always state the zone abbreviation, not just the hour. "3:00 PM GST" is unambiguous; "3 PM" across a -12h gap is not.
- With a -12h gap there is no shared 9-to-5 window, so alternate the early start: one week GST takes the early slot, the next week PST does.
About GST (Gulf Standard Time)
Gulf Standard Time (GST) is the time zone used in the United Arab Emirates, Oman, and other Gulf states. GST does not observe daylight saving time. Dubai and Abu Dhabi, major international business and tourism hubs, operate on GST.
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.
Best time to call between GST and PST
With a -12h offset there is no overlap inside a normal 9 AM – 5 PM day. PST opens at 9:00 AM PST, which is 9:00 PM in GST, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
GST and PST have no shared working hours because of the -12h gap. Teams need to alternate early starts or rely on asynchronous handovers.
GST is 12 hours behind PST (GST UTC+04:00 → PST UTC-08:00). 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
GST
Does not observe DST
PST
☀ Currently in DST
Standard: UTC-08:00 · DST: UTC-07:00
Clocks fall back on Sun, Nov 1, 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 GST and PST?
GST (GST, UTC+04:00) is 12 hours behind PST (PST, UTC-08:00). The gap is currently -12h.
How do I convert GST time to PST time?
Add -12h to GST local time. For example, 9:00 AM in GST is 9:00 PM in PST (previous day).
What time is it in PST right now?
PST uses PST at UTC-08:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -12h offset from GST.
What is the best time to call PST from GST?
There is no shared working-hours window because of the -12h gap. The closest option is 1:00 PM in GST, which is 1:00 AM in PST.
Which is behind, GST or PST?
GST is 12 hours behind PST. When it is 12:00 PM in GST it is 12:00 AM in PST.
Does daylight saving time affect the GST–PST difference?
Neither zone observes daylight saving time, so the -12h offset between GST and PST is fixed all year.
Which other cities share GST's time zone?
GST also covers Dubai, Abu Dhabi, Muscat, Baku, Tbilisi.
Which countries use GST, GST's zone?
GST is used in UAE, Oman, Georgia, Azerbaijan, Mauritius.
Is there a day difference between GST and PST?
Sometimes. The -12h gap is large enough that 8:00 PM or later in GST already falls on the in PST.
What is the time difference between GST and PST?
PST is -12h from GST.
What timezone is GST in?
GST operates on its local timezone.
What timezone is PST in?
PST operates on its local timezone.
Which countries use GST (Gulf Standard Time)?
GST is used in UAE, Oman, Georgia, Azerbaijan, Mauritius.
Does GST observe daylight saving time?
No, GST does not observe daylight saving time and remains at UTC+04:00 year-round.
What are some interesting facts about GST?
Dubai uses GST year-round with no daylight saving time. GST is 9 hours ahead of EST and 4 hours ahead of GMT.
Which cities are in the PST timezone?
Major cities in the PST timezone include Los Angeles, San Francisco, Seattle, Vancouver, San Diego, Portland, Las Vegas, Sacramento.
What is the UTC offset for PST?
Pacific Standard Time (PST) is at UTC-08:00. During daylight saving time, it shifts to PDT.
What should I know about the PST timezone?
Silicon Valley and the world's biggest tech companies operate on Pacific Time. The Hollywood film industry runs on PST/PDT.
When is it midnight in GST, what time is it in PST?
When it is 12:00 AM (midnight) in GST (GST), it is -12h later in PST (PST).
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