Convert any time between GST and PST, with a full 24-hour table and the hours when both sides are actually at work.

GST to PST Time Converter

PST is 11 hours behind GST. GST is UTC+4:00, and The US West Coast is currently on PDT (UTC-7:00).

Worth knowing right now. The US West Coast is currently on PDT, not PST, because daylight saving is in effect. The 11 hours above is the gap between those two regions today, which is almost certainly what you want. Taken strictly as written, GST to PST is 12 hours.
GST
Gulf Standard Time
07:05:52 PM
Sunday, October 11, 2026
UTC+4:00
-11:00
hours difference
⇆ Reverse
PST
Pacific Standard Time
08:05:52 AM
Sunday, October 11, 2026
UTC-7:00

Best Time to Call Between GST and PST

Standard 9-to-5 hours in these two zones never overlap, so someone has to take the call outside their working day. The most workable window is 6:00 PM to 10:00 PM GST, which is 7:00 AM to 11:00 AM PST.

both at work GST only PST only neither  —  hours along the strip are GST.

GST to PST: Full 24-Hour Conversion Table

Shaded rows are working hours; the darker shade marks the hours when both zones are at work.

GSTPSTWorking hours
12:00 AM 1:00 PM prev day PST only
1:00 AM 2:00 PM prev day PST only
2:00 AM 3:00 PM prev day PST only
3:00 AM 4:00 PM prev day PST only
4:00 AM 5:00 PM prev day —
5:00 AM 6:00 PM prev day —
6:00 AM 7:00 PM prev day —
7:00 AM 8:00 PM prev day —
8:00 AM 9:00 PM prev day —
9:00 AM 10:00 PM prev day GST only
10:00 AM 11:00 PM prev day GST only
11:00 AM 12:00 AM GST only
12:00 PM 1:00 AM GST only
1:00 PM 2:00 AM GST only
2:00 PM 3:00 AM GST only
3:00 PM 4:00 AM GST only
4:00 PM 5:00 AM GST only
5:00 PM 6:00 AM —
6:00 PM 7:00 AM —
7:00 PM 8:00 AM —
8:00 PM 9:00 AM PST only
9:00 PM 10:00 AM PST only
10:00 PM 11:00 AM PST only
11:00 PM 12:00 PM PST only

What GST and PST Actually Are

GST — Gulf Standard Time

Dubai, Abu Dhabi, Sharjah, Muscat. Standing at UTC+4:00 as written, and the region does not change its clocks, so that offset holds all year. GST also refers to South Georgia Time (UTC-2), which you are very unlikely to want.

The Gulf states have never observed daylight saving, so Dubai's offset has been unchanged for decades — unusual stability for a region that grew as fast as it did.

PST — Pacific Standard Time

Los Angeles, San Francisco, Seattle, Las Vegas, Vancouver. Standing at UTC-8:00 as written, and the region does change its clocks, so its live offset moves by an hour twice a year. The next change is on Sunday, November 1, 2026, to PST. The Philippines occasionally uses PST for Philippine Standard Time (UTC+8); PHT is the clearer label for that.

California voted in 2018 to move to permanent daylight time, but the change needs an act of Congress and has never happened, so PST is still the winter standard.

What This Means in Practice

The date changes mid-working-day

For 2 of the eight hours in a normal GST working day, the equivalent PST time falls on a different calendar date. Anything scheduled in that stretch needs the date checked as well as the time, or a Tuesday call quietly becomes a Wednesday one at the other end.

This gap is not fixed

PST changes its clocks and GST does not, so the difference between them moves by an hour twice a year. A recurring meeting set now will drift for one side from Sunday, November 1, 2026 unless someone resets it.

Nearly opposite sides of the clock

At 11 hours apart, one side's morning is the other side's night. Handing work over at the end of a shift usually beats trying to get both parties in the same call.

Frequently Asked Questions

What is the time difference between GST and PST?

PST is 11 hours behind GST. That is the live figure. Taken strictly as written, the gap between GST and PST is 12 hours — the two differ because at least one of these regions is currently on daylight saving.

What is 9:00 AM GST in PST?

9:00 AM GST is 10:00 PM the previous day PST.

What are the best hours to schedule a call between GST and PST?

Standard business hours in these two zones do not overlap at all, so one side has to work outside the 9-to-5. The most workable window is 6:00 PM to 10:00 PM GST, which is 7:00 AM to 11:00 AM PST.

Does the difference between GST and PST change during the year?

Yes. PST observes daylight saving and GST does not, so the gap shifts by an hour at least twice a year. The next clock change is on Sunday, November 1, 2026.

Does GST always mean Gulf Standard Time?

GST also refers to South Georgia Time (UTC-2), which you are very unlikely to want.

Does PST always mean Pacific Standard Time?

The Philippines occasionally uses PST for Philippine Standard Time (UTC+8); PHT is the clearer label for that.

Converting between two time zones regularly? Bookmark this page — the clocks update live and the table follows daylight saving automatically.