PST to CLT Time Converter
CLT is 4 hours ahead of PST. The US West Coast is currently on PDT (UTC-7:00), and Chile is currently on UTC-3:00.
Best Time to Call Between PST and CLT
Both zones are inside normal business hours between 9:00 AM and 1:00 PM PST — that's 1:00 PM to 5:00 PM CLT. That's a 4-hour window.
both at work PST only CLT only neither — hours along the strip are PST.
Common Times Converted
PST on the left, CLT on the right.
PST to CLT: Full 24-Hour Conversion Table
Shaded rows are working hours; the darker shade marks the hours when both zones are at work.
| PST | CLT | Working hours |
|---|---|---|
| 12:00 AM | 4:00 AM | — |
| 1:00 AM | 5:00 AM | — |
| 2:00 AM | 6:00 AM | — |
| 3:00 AM | 7:00 AM | — |
| 4:00 AM | 8:00 AM | — |
| 5:00 AM | 9:00 AM | CLT only |
| 6:00 AM | 10:00 AM | CLT only |
| 7:00 AM | 11:00 AM | CLT only |
| 8:00 AM | 12:00 PM | CLT only |
| 9:00 AM | 1:00 PM | Both zones |
| 10:00 AM | 2:00 PM | Both zones |
| 11:00 AM | 3:00 PM | Both zones |
| 12:00 PM | 4:00 PM | Both zones |
| 1:00 PM | 5:00 PM | PST only |
| 2:00 PM | 6:00 PM | PST only |
| 3:00 PM | 7:00 PM | PST only |
| 4:00 PM | 8:00 PM | PST only |
| 5:00 PM | 9:00 PM | — |
| 6:00 PM | 10:00 PM | — |
| 7:00 PM | 11:00 PM | — |
| 8:00 PM | 12:00 AM next day | — |
| 9:00 PM | 1:00 AM next day | — |
| 10:00 PM | 2:00 AM next day | — |
| 11:00 PM | 3:00 AM next day | — |
What PST and CLT Actually Are
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.
CLT — Chile Standard Time
Santiago, Valparaíso, Concepción. Standing at UTC-4:00 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 Saturday, April 3, 2027, to -04. Chile still changes its clocks, moving to CLST (UTC-3) for the southern summer.
Chile is one of very few countries still moving its clocks, and the Magallanes region in the far south stays on UTC-3 permanently while the rest of the country switches.
What This Means in Practice
Both sides change clocks, on different dates
Both regions observe daylight saving but do not switch on the same day, so for a week or two each spring and fall the gap between them is an hour different from the rest of the year. Those short windows are where recurring invitations quietly break.
Major Cities in Each Zone
Cities on PST
Cities on CLT
Frequently Asked Questions
What is the time difference between PST and CLT?
CLT is 4 hours ahead of PST.
What is 9:00 AM PST in CLT?
9:00 AM PST is 1:00 PM CLT.
What are the best hours to schedule a call between PST and CLT?
Between 9:00 AM and 1:00 PM PST, which is 1:00 PM to 5:00 PM CLT. Both sides are inside normal business hours through that window.
Does the difference between PST and CLT change during the year?
Yes. Both regions observe daylight saving, and they do not switch on the same dates, so the gap shifts by an hour at least twice a year. The next clock change is on Sunday, November 1, 2026.
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.
Does CLT always mean Chile Standard Time?
Chile still changes its clocks, moving to CLST (UTC-3) for the southern summer.