EST to PST Converter
Pacific Time is 3 hours behind Eastern Time all year: EST to PST in winter, EDT to PDT in summer. 9:00 AM Eastern is 6:00 AM Pacific, and 12:00 PM Eastern is 9:00 AM.
Eastern Time Against Every US Zone
Pacific is the furthest of the four mainland zones. How far each zone is behind Eastern Time:
| Zone | Behind Eastern by |
|---|---|
| Central (Chicago, Dallas) | 1 hour, all year |
| Mountain (Denver, Salt Lake City) | 2 hours, all year |
| Arizona (no clock change) | 2 hours on EST, 3 hours on EDT |
| Pacific (Los Angeles, Seattle) | 3 hours, all year |
| Alaska (Anchorage) | 4 hours, all year |
| Hawaii (no clock change) | 5 hours on EST, 6 hours on EDT |
Arizona and Hawaii do not change their clocks, so their gap to Eastern Time moves by an hour twice a year while the other zones stay fixed.
The Stock Market Opens Before Breakfast on the West Coast
The NYSE core session runs from 9:30 AM to 4:00 PM Eastern. On the Pacific clock that is 6:30 AM to 1:00 PM, all year, so a trader in California is at the screen at dawn and done by lunchtime. A 9:00 AM Eastern meeting is 6:00 AM in Los Angeles, and 8:00 AM is 5:00 AM.
Going the other way, a Pacific 9:00 AM start is 12:00 PM Eastern, which is why a California team that wants East Coast colleagues should not book anything before it.
Noon to Five on the East Coast
If both sides work 9 to 5, the shared hours are 12:00 to 5:00 PM Eastern, which is 9:00 AM to 2:00 PM Pacific, five hours. Eastern mornings are too early for the coast, and Pacific afternoons are after the East Coast has gone home: 3:00 PM Pacific is 6:00 PM Eastern.
| Eastern Standard Time | Pacific Standard Time |
|---|---|
| 12:00 PM–5:00 PM | 9:00 AM–2:00 PM |
| EST/EDT → PST/PDT: Both inside 9 AM–5 PM Noon to five in the East is nine to two on the coast, in every season. | |
"Inside 9 AM–5 PM" is a planning assumption for a standard office day on each side, not a claim about any company's hours.
Eastern Time in Pacific Time, Every Hour
Full 24-hour reference table. Use the live clocks above for the exact current offset.
| 🇺🇸 EST/EDT | 🇺🇸 EST/EDT → PST/PDTWinter UTC-5 to UTC-8, summer UTC-4 to UTC-7 (always −3 hours) |
|---|---|
| 00:00 | 9:00 PMprev day |
| 01:00 | 10:00 PMprev day |
| 02:00 | 11:00 PMprev day |
| 03:00 | 12:00 AM |
| 04:00 | 1:00 AM |
| 05:00 | 2:00 AM |
| 06:00 | 3:00 AM |
| 07:00 | 4:00 AM |
| 08:00 | 5:00 AM |
| 09:00 | 6:00 AM |
| 10:00 | 7:00 AM |
| 11:00 | 8:00 AM |
| 12:00 | 9:00 AM |
| 13:00 | 10:00 AM |
| 14:00 | 11:00 AM |
| 15:00 | 12:00 PM |
| 16:00 | 1:00 PM |
| 17:00 | 2:00 PM |
| 18:00 | 3:00 PM |
| 19:00 | 4:00 PM |
| 20:00 | 5:00 PM |
| 21:00 | 6:00 PM |
| 22:00 | 7:00 PM |
| 23:00 | 8:00 PM |
"prev day" = converted time falls on the previous calendar day.
Two Nights a Year the Gap Is Not 3 Hours
Both zones change on the same Sunday, but at 2:00 AM local time, which is a different moment in each:
- Second Sunday in March: Eastern clocks go forward at 2:00 AM and Pacific clocks three hours later. From 3:00 to 6:00 AM Eastern the gap is 4 hours.
- First Sunday in November: Eastern clocks go back first. From 1:00 to 4:00 AM Eastern (EST) the gap is 2 hours.
Nobody schedules meetings then, but alarms, scheduled jobs and overnight batch runs are set at those hours.
A Deadline Set in Eastern Time
A form that closes at 11:59 PM Eastern closes at 8:59 PM Pacific. Anyone on the West Coast who reads "end of day" as 11:59 PM on their own clock is three hours late, so a deadline that has to work for both coasts should name the zone.
Live events have the opposite problem. A webinar that starts at 12:00 PM Eastern starts at 9:00 AM Pacific, which is the earliest start that is not before a West Coast workday. A 10:00 AM Eastern start is 7:00 AM Pacific, so those attendees join before most West Coast workdays have started.
Because both coasts change clocks on the same Sunday, the three hours never move, and the invite only needs to say "ET" and "PT" rather than EST or EDT. The exception is the few hours on those two Sundays described above, when overnight timers and server jobs can run an hour off.