This PST to GMT converter turns any time in Pacific Standard Time (PST) into Greenwich Mean Time (GMT), using your device clock so daylight saving is applied automatically. GMT is 8 hours ahead of PST. PST is UTC−8 (PDT: UTC−7); GMT is UTC+0 (BST: UTC+1).
PST covers Los Angeles, San Francisco, Seattle; GMT covers London, Edinburgh, Dublin (IST). Because both zones change their clocks on different dates, the difference is not constant through the year. The tables below show both cases, and the converter at the top always uses the rule in force on the date you pick.
PST and GMT UTC offsets
PST
UTC−8
Pacific Standard Time
PDT UTC−7 from March 8 to November 1, 2026
GMT
UTC+0
Greenwich Mean Time
BST UTC+1 from March 29 to October 25, 2026
PST to GMT conversion table
| PST | GMT |
|---|---|
| 12 am | 8 am |
| 3 am | 11 am |
| 6 am | 2 pm |
| 8 am | 4 pm |
| 9 am | 5 pm |
| 10 am | 6 pm |
| 11 am | 7 pm |
| 12 pm | 8 pm |
| 1 pm | 9 pm |
| 2 pm | 10 pm |
| 3 pm | 11 pm |
| 4 pm | 12 amnext day |
| 5 pm | 1 amnext day |
| 6 pm | 2 amnext day |
| 8 pm | 4 amnext day |
| 10 pm | 6 amnext day |
Frequently asked questions
What is the time difference between PST and GMT?
GMT is 8 hours ahead of PST. That comes from the UTC offsets: PST is UTC−8 and GMT is UTC+0. For example, 9 am PST = 5 pm GMT.
Is GMT ahead of or behind PST?
GMT is 8 hours ahead of PST, so when it is noon in PST it is 8 pm in GMT. Ahead means the clock there already shows a later time; a call at 5 pm PST lands at 1 am GMT.
Does PST or GMT observe daylight saving time in 2026?
PST switches to PDT (UTC−7) on March 8 and back on November 1 in 2026. GMT switches to BST (UTC+1) on March 29 and back on October 25. Between those dates the difference in the table above shifts by an hour, which is the usual cause of missed calls in spring and autumn.
What is the best time for a meeting between PST and GMT?
Office hours (9 am to 5 pm) do not overlap at all with a 8 hours difference. The least painful options are early morning in PST or early evening in GMT; for example 8 am PST = 4 pm GMT and 6 pm PST = 2 am GMT the next day. Rotate the inconvenient slot between the two sides for recurring calls.
Which cities use PST and GMT?
PST (Pacific Standard Time) is used in Los Angeles, San Francisco, Seattle, Vancouver. GMT (Greenwich Mean Time) is used in London, Edinburgh, Dublin (IST). Some cities inside a zone skip daylight saving, noted in parentheses, so their offset matches only part of the year.