PST to AST
Converting a fixed time. America/Los_Angeles → America/Halifax
Clocks go back 1 hour on Sunday, 1st November 2026, at 1:59 am local time (1:00 am after the change).
Clocks go back 1 hour on Sunday, 1st November 2026, at 1:59 am local time (1:00 am after the change).
Convert a specific time minutes work, not just whole hours
Hour by hour
| PST | AST | 24h | Good to call? |
|---|---|---|---|
| 12am | 4am | 00:00 → 04:00 | asleep in AST |
| 1am | 5am | 01:00 → 05:00 | asleep in AST |
| 2am | 6am | 02:00 → 06:00 | asleep in AST |
| 3am | 7am | 03:00 → 07:00 | asleep in PST |
| 4am | 8am | 04:00 → 08:00 | asleep in PST |
| 5am | 9am | 05:00 → 09:00 | asleep in PST |
| 6am | 10am | 06:00 → 10:00 | asleep in PST |
| 7am | 11am | 07:00 → 11:00 | awake, not at work |
| 8am | 12pm | 08:00 → 12:00 | awake, not at work |
| 9am | 1pm | 09:00 → 13:00 | both at work |
| 10am | 2pm | 10:00 → 14:00 | both at work |
| 11am | 3pm | 11:00 → 15:00 | both at work |
| 12pm | 4pm | 12:00 → 16:00 | both at work |
| 1pm | 5pm | 13:00 → 17:00 | awake, not at work |
| 2pm | 6pm | 14:00 → 18:00 | awake, not at work |
| 3pm | 7pm | 15:00 → 19:00 | awake, not at work |
| 4pm now | 8pm | 16:00 → 20:00 | awake, not at work |
| 5pm | 9pm | 17:00 → 21:00 | awake, not at work |
| 6pm | 10pm | 18:00 → 22:00 | asleep in AST |
| 7pm | 11pm | 19:00 → 23:00 | asleep in AST |
| 8pm | 12am Fri | 20:00 → 00:00 | asleep in AST |
| 9pm | 1am Fri | 21:00 → 01:00 | asleep in AST |
| 10pm | 2am Fri | 22:00 → 02:00 | asleep in AST |
| 11pm | 3am Fri | 23:00 → 03:00 | asleep in AST |
Call times
Both places are at work between 9am and 13:00 in Los Angeles — 1pm to 4pm at the other end.
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Questions people ask
What time is it in AST when it is 3:30 pm in PST?
7:30 pm in AST the same day.
How many hours ahead is AST of PST?
AST is 4 hours ahead PST. That gap is not fixed: it changes when either place starts or ends daylight saving. The table on this page is recalculated for today, so it is already correct for the current season.
What is the best time to call between PST and AST?
Both places are at work between 9am and 13:00 in Los Angeles — 1pm to 4pm at the other end.
When does the difference between PST and AST change?
PST: Clocks go back 1 hour on Sunday, 1st November 2026, at 1:59 am local time (1:00 am after the change). AST: Clocks go back 1 hour on Sunday, 1st November 2026, at 1:59 am local time (1:00 am after the change).