Reference offset
PST is commonly associated with UTC-8 in standard time. The live clock shows the current regional offset separately.
Time-zone reference
Pacific Standard Time
PST is the standard-time abbreviation for the Pacific zone in the western United States and Canada.
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Pacific standard time versus the local Pacific clock
PST denotes UTC−08:00. Los Angeles is the regional reference on this page and can shift to Pacific Daylight Time. Its live offset describes the city now, while the reference offset below describes PST specifically.
A location described as Pacific Time may have different regional rules from another location with the same current offset. For future appointments, use the actual city rather than assuming every Pacific location follows Los Angeles.
Conversion example
08:00 PST is 16:00 UTC. A city currently at UTC−07:00 reaches 08:00 at 15:00 UTC instead.
A common scheduling mistake
A Pacific label does not prove a city uses the same seasonal rules as every other Pacific city.
Regional rules: IANA Time Zone Database Our calculation methods
What this abbreviation usually means
The page uses Los Angeles as the working reference and explains the shift to PDT when daylight saving begins.
PST conversion chart
Each hour of PST (UTC−8) converted to other common standard-time abbreviations. “+1” and “−1” mark the next or previous calendar day.
| PST | UTC | EST | GMT | CET | IST | JST |
|---|---|---|---|---|---|---|
| 00:00 | 08:00 | 03:00 | 08:00 | 09:00 | 13:30 | 17:00 |
| 01:00 | 09:00 | 04:00 | 09:00 | 10:00 | 14:30 | 18:00 |
| 02:00 | 10:00 | 05:00 | 10:00 | 11:00 | 15:30 | 19:00 |
| 03:00 | 11:00 | 06:00 | 11:00 | 12:00 | 16:30 | 20:00 |
| 04:00 | 12:00 | 07:00 | 12:00 | 13:00 | 17:30 | 21:00 |
| 05:00 | 13:00 | 08:00 | 13:00 | 14:00 | 18:30 | 22:00 |
| 06:00 | 14:00 | 09:00 | 14:00 | 15:00 | 19:30 | 23:00 |
| 07:00 | 15:00 | 10:00 | 15:00 | 16:00 | 20:30 | 00:00+1 |
| 08:00 | 16:00 | 11:00 | 16:00 | 17:00 | 21:30 | 01:00+1 |
| 09:00 | 17:00 | 12:00 | 17:00 | 18:00 | 22:30 | 02:00+1 |
| 10:00 | 18:00 | 13:00 | 18:00 | 19:00 | 23:30 | 03:00+1 |
| 11:00 | 19:00 | 14:00 | 19:00 | 20:00 | 00:30+1 | 04:00+1 |
| 12:00 | 20:00 | 15:00 | 20:00 | 21:00 | 01:30+1 | 05:00+1 |
| 13:00 | 21:00 | 16:00 | 21:00 | 22:00 | 02:30+1 | 06:00+1 |
| 14:00 | 22:00 | 17:00 | 22:00 | 23:00 | 03:30+1 | 07:00+1 |
| 15:00 | 23:00 | 18:00 | 23:00 | 00:00+1 | 04:30+1 | 08:00+1 |
| 16:00 | 00:00+1 | 19:00 | 00:00+1 | 01:00+1 | 05:30+1 | 09:00+1 |
| 17:00 | 01:00+1 | 20:00 | 01:00+1 | 02:00+1 | 06:30+1 | 10:00+1 |
| 18:00 | 02:00+1 | 21:00 | 02:00+1 | 03:00+1 | 07:30+1 | 11:00+1 |
| 19:00 | 03:00+1 | 22:00 | 03:00+1 | 04:00+1 | 08:30+1 | 12:00+1 |
| 20:00 | 04:00+1 | 23:00 | 04:00+1 | 05:00+1 | 09:30+1 | 13:00+1 |
| 21:00 | 05:00+1 | 00:00+1 | 05:00+1 | 06:00+1 | 10:30+1 | 14:00+1 |
| 22:00 | 06:00+1 | 01:00+1 | 06:00+1 | 07:00+1 | 11:30+1 | 15:00+1 |
| 23:00 | 07:00+1 | 02:00+1 | 07:00+1 | 08:00+1 | 12:30+1 | 16:00+1 |
Where PST is used
These cities on our world clock use PST during standard time and PDT during daylight saving time:
- Los Angeles, United States
- Seattle, United States
- San Francisco, United States
- Las Vegas, United States
When PST and PDT switch in Los Angeles
- : PDT begins — at 02:00 local time clocks go forward to 03:00.
- : PST resumes — at 02:00 local time clocks go back to 01:00.
- : PDT begins — at 02:00 local time clocks go forward to 03:00.
- : PST resumes — at 02:00 local time clocks go back to 01:00.
PST questions
What is PST in UTC?
PST (Pacific Standard Time) is UTC−8, 8 hours behind UTC. To convert PST to UTC, add 8 hours: 12:00 PST is 20:00 UTC.
Is PST the same as PDT?
No. PST is the standard-time label and PDT is the daylight-saving label for the same region, one hour ahead. Most places that use PST in winter switch to PDT in summer, so a time written as PST during the summer months is usually a mislabel for PDT. When in doubt, name the city or use the IANA zone America/Los_Angeles.
Which cities use PST?
Cities on our world clock that use PST in standard time include Los Angeles, Seattle, San Francisco, Las Vegas.
Compare PST with related zones
These are the abbreviations people most often compare against this reference.
EST Open the EST reference page and compare it directly with PST. CST (US) Open the CST (US) reference page and compare it directly with PST. JST Open the JST reference page and compare it directly with PST. Timezone Converter Convert a specific date and time between PST and any other major world zone.