PST to GST
+12hPST
PSTSOURCEGST
GSTGreen rows indicate typical business hours (9 AM - 5 PM)
PST and GST on the World Map
The map below highlights the PST (Pacific Standard Time) and GST (Gulf Standard 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.
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.
Everything You Need to Know About PST and GST Time
PST runs on Pacific Standard Time (PST) at UTC-08:00. GST runs on Gulf Standard Time (GST) at UTC+04:00. That puts PST 12 hours ahead of GST — a difference of +12h at the current offsets.
In practice, when it is 9:00 AM in PST it is 9:00 PM in GST. Midnight in PST is 12:00 PM in GST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
PST to GST time conversion table
| PST (PST) | GST (GST) | Day |
|---|---|---|
| 12:00 AM | 12:00 PM | same day |
| 6:00 AM | 6:00 PM | same day |
| 7:00 AM | 7:00 PM | same day |
| 8:00 AM | 8:00 PM | same day |
| 9:00 AM | 9:00 PM | same day |
| 12:00 PM | 12:00 AM | next day |
| 3:00 PM | 3:00 AM | next day |
| 5:00 PM | 5:00 AM | next day |
| 6:00 PM | 6:00 AM | next day |
| 9:00 PM | 9:00 AM | next day |
Why people convert PST to GST time
- Scheduling a call from PST to GST: a 10:00 AM start in PST lands at 10:00 PM in GST, so you can confirm the slot without doing the arithmetic yourself.
- Handling a +12h gap: PST and GST 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 GST is 9:00 PM in PST.
- Booking travel or deliveries: tracking GST local time against PST keeps pickup windows and arrival estimates honest across the +12h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM PST" 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 PST takes the early slot, the next week GST 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 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.
Best time to call between PST and GST
With a +12h offset there is no overlap inside a normal 9 AM – 5 PM day. GST opens at 9:00 AM GST, which is 9:00 PM in PST, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
PST and GST have no shared working hours because of the +12h gap. Teams need to alternate early starts or rely on asynchronous handovers.
PST is 12 hours ahead of GST (PST UTC-08:00 → GST UTC+04:00). 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
GST
Does not observe DST
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 GST?
PST (PST, UTC-08:00) is 12 hours ahead of GST (GST, UTC+04:00). The gap is currently +12h.
How do I convert PST time to GST time?
Add +12h to PST local time. For example, 9:00 AM in PST is 9:00 PM in GST.
What time is it in GST right now?
GST uses GST at UTC+04:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +12h offset from PST.
What is the best time to call GST from PST?
There is no shared working-hours window because of the +12h gap. The closest option is 1:00 PM in PST, which is 1:00 AM in GST.
Which is ahead, PST or GST?
PST is 12 hours ahead of GST. When it is 12:00 PM in PST it is 12:00 AM in GST.
Does daylight saving time affect the PST–GST difference?
Neither zone observes daylight saving time, so the +12h offset between PST and GST 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 GST?
Sometimes. The +12h gap is large enough that 8:00 PM or later in PST already falls on the next day in GST.
What is the time difference between PST and GST?
GST is +12h from PST.
What timezone is PST in?
PST operates on its local timezone.
What timezone is GST in?
GST 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 GST timezone?
Major cities in the GST timezone include Dubai, Abu Dhabi, Muscat, Baku, Tbilisi.
What is the UTC offset for GST?
Gulf Standard Time (GST) is at UTC+04:00.
What should I know about the GST timezone?
Dubai uses GST year-round with no daylight saving time. GST is 9 hours ahead of EST and 4 hours ahead of GMT.
When is it midnight in PST, what time is it in GST?
When it is 12:00 AM (midnight) in PST (PST), it is +12h later in GST (GST).
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