Convert PST to EST Pacific Standard Time ↔ Eastern Standard Time Free Online Secure
Type a time in PST and read it in EST straight away. The offset is +3 h, the arithmetic wraps at midnight, and the answer says which day it lands on.
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Through the day — Convert PST to EST (Pacific Standard Time ↔ Eastern Standard Time)
| PST | EST |
|---|---|
| 00:00 | 03:00 |
| 03:00 | 06:00 |
| 06:00 | 09:00 |
| 09:00 | 12:00 |
| 12:00 | 15:00 |
| 15:00 | 18:00 |
| 18:00 | 21:00 |
| 21:00 | 00:00 |
Where these units come from
Until the middle of the nineteenth century every town kept its own noon, set by the sun overhead, and nobody minded that the next town was four minutes behind. Railways ended that: a timetable cannot be written for a hundred local noons. Britain put its railways on Greenwich time in 1847, and in 1884 the International Meridian Conference in Washington chose Greenwich as the prime meridian and sketched the twenty-four-hour scheme we still use. Greenwich Mean Time was the world's reference until 1972, when Coordinated Universal Time replaced it: UTC is kept by atomic clocks and tied back to the turning Earth by leap seconds. The abbreviations on this page name standard time — the winter setting — which is why each one is a fixed number of hours rather than something that drifts through the year.
Where you meet them
A time zone becomes real the moment two people in different places have to agree on one moment: a call between offices, a flight that lands before it took off, a market that opens while you are asleep, a deadline written in somebody else's afternoon. Server logs, train and flight schedules and anything stamped with a time are kept in UTC precisely so that the question can always be settled, no matter whose clock was on the wall.
Questions people ask
What about summer time?
The offsets here are standard-time offsets, the ones a zone keeps in winter. Where summer time is observed, the same places move one hour further on for part of the year and take a different name: Central European Time becomes Central European Summer Time, Eastern Standard Time becomes Eastern Daylight Time. The switching dates are not the same in every country, and the two hemispheres change in opposite months, so for a date inside a summer-time period add an hour to whichever side observes it.
Why isn't every difference a whole number of hours?
Because offsets are decided by governments, not by geometry. India is half an hour off the hour, at UTC+05:30; Nepal is three quarters, at UTC+05:45; the Chatham Islands are at UTC+12:45. Any of these can be changed by law, and several countries have moved their offset within living memory.
Is the answer exact?
Where both units are defined in terms of one another by whole numbers, yes — the page says so above the figure, and the only rounding is in how many digits are shown. Where the ratio has no finite decimal, the page shows twelve significant digits and says the relation is approximate rather than pretending otherwise.
Does anything I type leave my device?
No. The arithmetic runs in your browser; nothing is uploaded and there is no server to upload it to. Load the page once and it keeps working with the network switched off.
Pacific timestamps, Eastern readers
Plenty of things happen on the Pacific clock first and are read about on the Eastern one afterwards: a keynote at 10:00 a.m. in Cupertino, a tip-off at 7:30 p.m. in Los Angeles, polls closing at 8:00 p.m. in California. Anyone in New York, Washington or Toronto who wants the same moment on a local dial has to convert PST to EST, and the arithmetic is a single step: add three hours. 10:00 a.m. PST is 1:00 p.m. EST, 7:30 p.m. PST is 10:30 p.m. EST, and 9:30 p.m. PST is 12:30 a.m. EST on the following calendar day.
This page starts with the events people actually convert for, then states the rule, gives lookup tables and describes the two zones. It also explains the short stretches on the changeover Sundays when the usual three hours briefly becomes four or two. Everything runs in your browser, and nothing you type leaves your device.
Keynotes and launches on the West Coast
Ten o’clock in Cupertino
Large technology companies often stage their big announcements at 10:00 a.m. PT. In New York that is 1:00 p.m., right in the lunch hour, and in London in winter it is 6:00 p.m. A reader who has to convert PST to EST for such an event learns at once whether the live stream fits into the working day.
Review embargoes
Product reviews tend to appear at 6:00 a.m. PT, which is 9:00 a.m. ET. By then New York newsrooms are fully awake, while the authors in California have only just had their coffee.
Election night in the west
When the polls close
California polls close at 8:00 p.m. PT, which is 11:00 p.m. ET. Viewers in the east therefore hear the first projections for the state close to midnight, and the fuller picture arrives only the next morning.
Reading a closing-time table
A list of closing times printed in PT has to be shifted three hours later on an Eastern clock. With a “convert PST to EST” calculation handy you avoid confusing the state’s hour with your own.
Basketball and baseball from the Pacific
Evening games
A basketball game starting at 7:30 p.m. PT starts at 10:30 p.m. ET and usually ends after midnight in the east. A baseball game at 7:10 p.m. PT starts at 10:10 p.m. ET. Fans in New York who want the whole game stay up late.
Weekend afternoons
A game at 1:00 p.m. PT on Saturday starts at 4:00 p.m. ET. For viewers in Europe in winter, that is after 21:00.
Red-eye flights across the country
The late departure
A flight from Los Angeles to New York that leaves at 22:30 PST and takes just under six hours lands at 04:00 PST, which is 07:00 EST. The ticket reads 22:30 and 07:00, so it looks like a journey of eight and a half hours, though the flight is shorter.
What the ticket shows
Times on a ticket are always local. A “convert PST to EST” calculation done before departure shows how long you will have after landing, for example before a meeting at 9:00 EST.
Midnight releases and limited offers
Streaming drops
Streaming platforms often release new titles at 00:01 PT, which is 03:01 ET. Easterners find them at breakfast, while Californians can start watching at midnight.
Deadlines on sales
An offer that ends “at midnight Pacific” ends at 3:00 a.m. ET. If a shopper has to convert PST to EST and gets it wrong by an hour, the deal is gone.
The closing bell, seen from California
Lunchtime close
The main New York session ends at 4:00 p.m. ET, which is 1:00 p.m. PT. A trader in San Francisco finishes before lunch; a trader in New York has the whole evening for analysis.
Quarterly results
A Californian company that releases results at 1:05 p.m. PT does so at 4:05 p.m. ET, just after the close. Analysts in the east comment on the figures over the next few hours.
Awards night
The red carpet
The film awards ceremony starts at 4:00 or 5:00 p.m. PT depending on the year, which is 7:00 or 8:00 p.m. ET. Red-carpet coverage begins at least two hours earlier. Viewers in the east sit down at dinner time.
The top prize
The biggest award usually comes near the end of the evening, say at 8:30 p.m. PT, which is 11:30 p.m. ET. Whoever does a “convert PST to EST” calculation for each category knows how late to stay up.
Weather and wildfire notices
Warnings in local time
Weather services issue warnings in local time. A storm warning valid until 6:00 p.m. PT expires at 9:00 p.m. ET. For an eastern reader following events, that difference can mean a whole evening.
Fire bulletins
A morning bulletin on a wildfire published at 8:00 a.m. PT is from 11:00 a.m. ET. The evening one, from 5:00 p.m. PT, is from 8:00 p.m. ET.
How to convert PST to EST, step by step
Add three hours
PST is UTC−8 and EST is UTC−5, so Eastern time runs three hours ahead of Pacific. Add 3 to the Pacific time. If the result passes 24:00, subtract 24 and move to the next date.
Eight pairs
00:00 PST is 03:00 EST. 06:15 PST is 09:15 EST. 09:00 PST is 12:00 EST. 12:00 PST is 15:00 EST. 15:45 PST is 18:45 EST. 18:00 PST is 21:00 EST. 21:30 PST is 00:30 EST the next day. 23:45 PST is 02:45 EST the next day. The last two cross into the next date.
In the summer months
In summer, PDT against EDT is still three hours. 10:00 a.m. PDT is 1:00 p.m. EDT. The figure stays the same; only the labels change.
Eastern time
Places and habits
Eastern Standard Time, UTC−5, is the winter clock of New York, Boston, Washington, Atlanta, Miami, Toronto and Montreal. In summer these cities move to EDT, UTC−4. National announcements simply say “ET”.
Why it is the default
Exchanges, big banks and national networks set their schedules by Eastern time. That is why a Californian so often has to convert PST to EST to find out when something happens.
Pacific time
Who uses it
Pacific Standard Time, UTC−8, is the winter clock of California, Oregon, Washington, most of Nevada, British Columbia and Baja California. In summer the label is PDT, UTC−7.
Exceptions
Arizona does not change its clocks and stays on UTC−7. In winter it is an hour ahead of California; in summer the two match. Hawaii is on UTC−10, also without daylight saving.
Three hours between the shores
The working day
A working day of 09:00 to 17:00 in California corresponds to 12:00 to 20:00 on the Eastern clock. The overlap with an Eastern office day of 09:00 to 17:00 is five hours, from 12:00 to 17:00 EST, which is 09:00 to 14:00 PST.
Who calls whom
A Californian who calls New York at 06:00 PST reaches it at 09:00 EST, at the start of the day there. A call at 15:00 PST reaches it at 18:00 EST, as colleagues head home.
Holidays between two coasts
Christmas Eve
Families who telephone each other at Christmas should remember that 6:00 p.m. in California is 9:00 p.m. in the east. Children on the East Coast are in bed before dinner starts in the west.
New Year’s Eve
The new year arrives in the east three hours earlier. When the last seconds are counted down in New York, it is only 9:00 p.m. in California. A “convert PST to EST” calculation made in advance shows when to start a live stream.
Dated examples
January
On Friday 16 January, 11:00 PST is 14:00 EST. Both regions are on standard time.
March
On Friday 6 March, 11:00 PST is 14:00 EST. On Friday 13 March, after the clocks went forward, 11:00 PDT is 14:00 EDT. The gap does not change.
October and November
On Friday 30 October, 11:00 PDT is 14:00 EDT. On Friday 6 November, 11:00 PST is 14:00 EST. The figure is the same, and the labels change.
The changeover Sunday
A three-hour window
The two coasts change their clocks at 2:00 a.m., each on its own dial, so not at the same instant. On 8 March, for three hours between 2:00 a.m. on the Eastern clock and 2:00 a.m. on the Pacific one, the gap is four hours, because the east is already on EDT. On 1 November, in the three hours between the two changes, the gap is two hours.
How to protect yourself
If you schedule something on such a Sunday, write the full date and the city. For the rest of the year a “convert PST to EST” calculation gives the three-hour figure without any exception.
The four zones, from the west
The ladder eastward
From Pacific time add one hour for Mountain, two for Central and three for Eastern. Alaska is one hour behind California, and Hawaii two hours behind in winter.
One moment in four cities
When it is 9:00 a.m. in Los Angeles, it is 10:00 a.m. in Denver, 11:00 a.m. in Chicago and 12:00 p.m. in New York. An invitation that lists all four spares the reader any convert PST to EST.
Music festivals on a live stream
The main stage
At a California festival the headline act often starts at 9:00 p.m. PT. A viewer in New York sees it at midnight, 12:00 a.m. ET, and one in Bucharest in winter at 7:00 in the morning.
The day’s schedule
A band booked for 2:30 p.m. PT plays at 5:30 p.m. ET. Eastern viewers who want to catch several sets must note the times on their own clocks, not the stage’s.
Software teams spread across the country
The morning stand-up
Teams with members in San Francisco and Boston often set the daily meeting for 9:00 a.m. PT, which is 12:00 p.m. ET. It is the lunch break for the east and the first event of the day for the west.
The handover
Someone who finishes at 5:00 p.m. PT hands over at 8:00 p.m. ET, when the eastern colleagues left long ago. The handover belongs in written notes, not a call.
Why the gap does not change in summer
The 2026 calendar
Because PST and EST follow the same calendar, the gap of 3 hours does not move; in summer they are called PDT and EDT.
How to apply it
For 2026 the dates are 29 March and 25 October in Europe and 8 March and 1 November in North America. Nothing about the sum changes with the season when you convert PST to EST.
All twenty-four hours side by side
PST against EST
00:00 PST becomes 03:00 EST. 01:00 PST becomes 04:00 EST. 02:00 PST becomes 05:00 EST. 03:00 PST becomes 06:00 EST. 04:00 PST becomes 07:00 EST. 05:00 PST becomes 08:00 EST. 06:00 PST becomes 09:00 EST. 07:00 PST becomes 10:00 EST. 08:00 PST becomes 11:00 EST. 09:00 PST becomes 12:00 EST. 10:00 PST becomes 13:00 EST. 11:00 PST becomes 14:00 EST. 12:00 PST becomes 15:00 EST. 13:00 PST becomes 16:00 EST. 14:00 PST becomes 17:00 EST. 15:00 PST becomes 18:00 EST. 16:00 PST becomes 19:00 EST. 17:00 PST becomes 20:00 EST. 18:00 PST becomes 21:00 EST. 19:00 PST becomes 22:00 EST. 20:00 PST becomes 23:00 EST. 21:00 PST becomes 00:00 EST (next day). 22:00 PST becomes 01:00 EST (next day). 23:00 PST becomes 02:00 EST (next day).
Notes on the table
The table lists the full day. Where the EST date differs from the PST date, the entry says so. Use it as a reference whenever you convert PST to EST. Because the difference is a whole number of hours, the minutes in the answer are the same as in the question.
Half-hour conversions
PST half-hours in EST
00:30 PST becomes 03:30 EST. 01:30 PST becomes 04:30 EST. 02:30 PST becomes 05:30 EST. 03:30 PST becomes 06:30 EST. 04:30 PST becomes 07:30 EST. 05:30 PST becomes 08:30 EST. 06:30 PST becomes 09:30 EST. 07:30 PST becomes 10:30 EST. 08:30 PST becomes 11:30 EST. 09:30 PST becomes 12:30 EST. 10:30 PST becomes 13:30 EST. 11:30 PST becomes 14:30 EST. 12:30 PST becomes 15:30 EST. 13:30 PST becomes 16:30 EST. 14:30 PST becomes 17:30 EST. 15:30 PST becomes 18:30 EST. 16:30 PST becomes 19:30 EST. 17:30 PST becomes 20:30 EST. 18:30 PST becomes 21:30 EST. 19:30 PST becomes 22:30 EST. 20:30 PST becomes 23:30 EST. 21:30 PST becomes 00:30 EST (next day). 22:30 PST becomes 01:30 EST (next day). 23:30 PST becomes 02:30 EST (next day).
What to remember
Half-hour starts are as easy to convert as whole hours. The rows below are the result of the same rule you use when you convert PST to EST.
Not just whole hours
Ten PST readings and the EST result
01:05 PST becomes 04:05 EST. 03:20 PST becomes 06:20 EST. 05:50 PST becomes 08:50 EST. 07:35 PST becomes 10:35 EST. 10:10 PST becomes 13:10 EST. 13:25 PST becomes 16:25 EST. 16:40 PST becomes 19:40 EST. 19:55 PST becomes 22:55 EST. 22:15 PST becomes 01:15 EST (next day). 23:05 PST becomes 02:05 EST (next day).
A word on minutes
A request to convert PST to EST often involves times such as 07:05 or 22:15, so the list below shows ten of them. Minutes are not affected here. A different minute figure in an answer is a sign of a slip.
Daily rhythm at the other end
EST time of day for chosen PST hours
06:00 PST becomes 09:00 EST (morning). 08:00 PST becomes 11:00 EST (morning). 10:00 PST becomes 13:00 EST (around midday). 12:00 PST becomes 15:00 EST (afternoon). 14:00 PST becomes 17:00 EST (afternoon). 16:00 PST becomes 19:00 EST (evening). 18:00 PST becomes 21:00 EST (evening). 20:00 PST becomes 23:00 EST (night). 22:00 PST becomes 01:00 EST (night).
Using the brackets
The brackets show whether the EST hour falls at night, in the early morning, during the working day or in the evening, which helps when you must convert PST to EST for a call.
Before you convert PST to EST: a short checklist
Before the sum
Read the labels
Do not confuse PST with Philippine or Pakistan time; this converter means the Pacific coast of North America. Check that an EST in a schedule is American or Canadian rather than Australian before you convert.
Use a 24-hour clock
Write 4:30 p.m. as 16:30 and 12:00 a.m. as 00:00 before you start. For example, 09:15 PST becomes 12:15 EST.
Then
The operation
Add 3 hours. If the result passes midnight, correct the date: readings from 21:00 fall on the next date.
A second example
Late in the evening, 22:40 PST becomes 01:40 EST (next day).
Traps to avoid when you convert PST to EST
Subtracting instead of adding
EST is in front of PST: expect a bigger number, not a smaller one.
Losing the date
PST readings from 21:00 fall on the next date. If the date stays put, the answer is a full day out.
Mixing up labels in summer
The summer names are PDT and EDT; the distance between the clocks stays as it was. The new names do not change the gap, so leave the sum alone.
Confusing the abbreviation
On this page PST means the west coast of North America at UTC−8, and nothing else. Eastern Standard Time is UTC−5; Australia uses the letters EST too, at UTC+10, which this page does not cover.
Questions and answers
How far apart are PST and EST?
3 hours, and EST is ahead of PST.
Which sum applies when I convert PST to EST?
Add 3 hours to the PST time, then fix the date if the result passes midnight.
What is 09:00 PST in EST?
12:00 EST.
Is the gap the same in every month?
Yes, it is the same in every month.
Is the time I enter sent anywhere?
No. The calculation runs in your browser.
More time zone converters
You may also want Convert PST to CST, Convert PST to GMT, Convert WET to EST, Convert UTC to EST, Convert EST to IST, Convert GMT to PST, Convert EET to GMT, Convert EST to CST, Convert WET to CET. To go the other way, use Convert EST to PST.
To sum up: convert PST to EST by one rule (add 3 hours) and a glance at the calendar. The work is done on your device.