Convert PST (Pacific Standard Time) to GST (Gulf Standard Time)
GST is 12 hours ahead of PST. PST is UTC−8 and GST is UTC+4.
Guide & FAQBest time to schedule a meeting · PST to GST conversion table · About PST · About GST · Does this gap change with the seasons? · Frequently asked questions
Best time to schedule a meeting
Standard 9–5 working hours do not overlap at all between PST and GST. Someone has to take an early or late call — or use asynchronous communication instead.
| PST | GST | Suitable? |
|---|---|---|
| 9:00 AM | 9:00 PM | outside 9–5 |
| 10:00 AM | 10:00 PM | outside 9–5 |
| 11:00 AM | 11:00 PM | outside 9–5 |
| 12:00 PM | 12:00 AM (next day) | outside 9–5 |
| 1:00 PM | 1:00 AM (next day) | outside 9–5 |
| 2:00 PM | 2:00 AM (next day) | outside 9–5 |
| 3:00 PM | 3:00 AM (next day) | outside 9–5 |
| 4:00 PM | 4:00 AM (next day) | outside 9–5 |
| 5:00 PM | 5:00 AM (next day) | outside 9–5 |
PST to GST conversion table
| PST | GST |
|---|---|
| 12:00 AM | 12:00 PM |
| 1:00 AM | 1:00 PM |
| 2:00 AM | 2:00 PM |
| 3:00 AM | 3:00 PM |
| 4:00 AM | 4:00 PM |
| 5:00 AM | 5:00 PM |
| 6:00 AM | 6:00 PM |
| 7:00 AM | 7:00 PM |
| 8:00 AM | 8:00 PM |
| 9:00 AM | 9:00 PM |
| 10:00 AM | 10:00 PM |
| 11:00 AM | 11:00 PM |
| 12:00 PM | 12:00 AM (next day) |
| 1:00 PM | 1:00 AM (next day) |
| 2:00 PM | 2:00 AM (next day) |
| 3:00 PM | 3:00 AM (next day) |
| 4:00 PM | 4:00 AM (next day) |
| 5:00 PM | 5:00 AM (next day) |
| 6:00 PM | 6:00 AM (next day) |
| 7:00 PM | 7:00 AM (next day) |
| 8:00 PM | 8:00 AM (next day) |
| 9:00 PM | 9:00 AM (next day) |
| 10:00 PM | 10:00 AM (next day) |
| 11:00 PM | 11:00 AM (next day) |
About PST
Pacific Standard Time (PST) is UTC−8. It is used in Los Angeles, San Francisco, Seattle and Vancouver in winter.
Pacific Standard Time is UTC−8, used by Los Angeles, San Francisco, Seattle and Vancouver from November to March. As with EST, the abbreviation is written all year in practice — a great deal of software, and most conference invitations from the US west coast, say PST when the sender means PDT. If a time from a US source looks an hour off between March and November, this is almost always why.
About GST
Gulf Standard Time (GST) is UTC+4. It is used in Dubai, Abu Dhabi and Muscat.
Gulf Standard Time is UTC+4, covering the United Arab Emirates and Oman, and there is no daylight saving anywhere on the Arabian peninsula. The scheduling complication in the region is not the clock but the week: the UAE moved its weekend to Saturday–Sunday in 2022, while Saudi Arabia and several neighbours keep Friday–Saturday, so a Thursday afternoon meeting lands differently across a border that has no time difference at all.
Does this gap change with the seasons?
This gap is seasonal. The abbreviations themselves are fixed offsets, but the region on PST switches to PDT (UTC−7) from March to November. So the 12-hour figure on this page is correct for the part of the year when both places are actually on these abbreviations, and changes by an hour outside it.
GST does not shift, so the whole change comes from one side. A recurring meeting fixed in GST will appear to move by an hour for everyone on the other side, twice a year, without anyone changing anything.
This is the reason scheduling systems store an IANA zone such as Region/City rather than an offset or an abbreviation: the zone knows its own rules and the offset does not.
Frequently asked questions
What time is 9:00 AM PST in GST?
9:00 AM PST is 9:00 PM GST.
Is GST ahead of PST?
GST is 12 hours ahead of PST.
Which time zone does this use?
PST is UTC−8 and GST is UTC+4. Both abbreviations denote a single fixed offset, so this conversion never shifts with daylight saving — what changes is which abbreviation a place is using at the time.