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GST to PST converter
Gulf Standard Time
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Pacific Time
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Pacific Time is 11 hours behind Gulf Standard Time for most of the year, and 12 hours behind for part of it, because the two change their clocks on different dates (or only one of them changes at all).
When does the difference change?
In 2026:
- January 1 to March 7: Pacific Time is 12 hours behind Gulf Standard Time
- March 8 to October 31: Pacific Time is 11 hours behind Gulf Standard Time
- November 1 to December 31: Pacific Time is 12 hours behind Gulf Standard Time
Questions
What time is 9 AM GST in PST?
For most of the year, 9 AM Gulf Standard Time is 10 PM the day before Pacific Time. For part of the year it is 9 PM the day before, because of daylight saving time.
How many hours ahead or behind is PST from GST?
Pacific Time is 11 hours behind Gulf Standard Time for most of the year, and 12 hours behind for part of it, because the two change their clocks on different dates (or only one of them changes at all).
Does the GST to PST difference change?
Yes. It changes 2 times in 2026 because of daylight saving time.
About these time zones
GST to PST, hour by hour
| Gulf Standard Time | Pacific Time |
|---|---|
| 12 AM | 1 PM (previous day) |
| 1 AM | 2 PM (previous day) |
| 2 AM | 3 PM (previous day) |
| 3 AM | 4 PM (previous day) |
| 4 AM | 5 PM (previous day) |
| 5 AM | 6 PM (previous day) |
| 6 AM | 7 PM (previous day) |
| 7 AM | 8 PM (previous day) |
| 8 AM | 9 PM (previous day) |
| 9 AM | 10 PM (previous day) |
| 10 AM | 11 PM (previous day) |
| 11 AM | 12 AM |
| 12 PM | 1 AM |
| 1 PM | 2 AM |
| 2 PM | 3 AM |
| 3 PM | 4 AM |
| 4 PM | 5 AM |
| 5 PM | 6 AM |
| 6 PM | 7 AM |
| 7 PM | 8 AM |
| 8 PM | 9 AM |
| 9 PM | 10 AM |
| 10 PM | 11 AM |
| 11 PM | 12 PM |
Based on the clocks on Monday, October 12, 2026. Use the converter above for another date.