Convert CET to EST Central European Time ↔ Eastern Standard Time Free Online Secure
Type a time in CET and read it in EST straight away. The offset is −6 h, the arithmetic wraps at midnight, and the answer says which day it lands on.
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Through the day — Convert CET to EST (Central European Time ↔ Eastern Standard Time)
| CET | EST |
|---|---|
| 00:00 | 18:00 |
| 03:00 | 21:00 |
| 06:00 | 00:00 |
| 09:00 | 03:00 |
| 12:00 | 06:00 |
| 15:00 | 09:00 |
| 18:00 | 12:00 |
| 21:00 | 15:00 |
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.
European hours on a New York dial
A European song contest final starts at 21:00 CET. The European Central Bank announces its rate decision at 14:15 CET. The New Year’s concert in Vienna begins at 11:15 CET. A reader in New York, Boston or Toronto wants to know what the clock says at home at those moments, and the answer comes from a “convert CET to EST” calculation. The rule is simple: subtract six hours. 21:00 CET becomes 15:00 EST, 14:15 CET becomes 08:15 EST, and 11:15 CET becomes 05:15 EST. Any European time before 06:00 belongs to the previous day in America.
The page begins with the European events people follow in the United States: football, music, motor racing, trade fairs and bank decisions. It then gives the rule, the tables and the two zones, with a section on the few weeks when the real gap is five hours. The arithmetic runs in your browser, and no figure is sent to a server.
Champions League, from European supper to American lunch
Evening matches
A European match that kicks off at 21:00 CET kicks off at 15:00 EST. Americans watch in the afternoon, at the office or over lunch, while Europeans watch in the evening at home.
Saturday fixtures
The German league schedules games on Saturdays at 15:30 CET, which is 9:30 a.m. EST. Fans in the east watch with breakfast, something a “convert CET to EST” calculation for each matchday brings out at once.
The continent’s song contest
The Saturday-night final
The grand final starts at 21:00 CEST, which is 15:00 EDT. American audiences watch on a Saturday afternoon, and the voting ends at the European midnight, which is 18:00 on the Eastern clock.
The semi-finals
The semi-finals, held during the week, also start at 21:00 CEST. In the east that is 15:00, in the middle of a working day.
The European Central Bank
The interest-rate decision
The announcement usually comes at 14:15 CET, which is 08:15 EST. The press conference opens at 14:45 CET, or 8:45 a.m. EST. American traders are already at their desks when the first reactions begin.
Effect on the markets
The euro moves within seconds, and early-rising Americans can watch it on screen before their own exchange opens. A “convert CET to EST” calculation that is an hour out places the announcement before or after the opening bell.
The Vienna New Year’s concert
The morning of 1 January
The concert in the Golden Hall starts at 11:15 CET, which is 5:15 a.m. EST. Americans who want to see it live get up before dawn on the first morning of the year.
Repeat broadcasts
Many American stations repeat it at 11:15 a.m. EST, which is 17:15 CET, so that it falls at lunchtime.
Formula 1 races in Europe
Sunday at three
A European Grand Prix often starts at 15:00 CEST, which is 9:00 a.m. EDT. For fans in the east it is a Sunday morning, and for those in California 6:00 a.m. PDT.
Qualifying
Saturday qualifying ends around 16:00 CEST, which is 10:00 a.m. EDT. A “convert CET to EST” calculation done in advance shows at once whether the alarm has to go off before sunrise.
Trade fairs and film premieres
Doors opening
An exhibition that opens its doors at 9:00 CET opens them at 3:00 a.m. on the Eastern clock. Virtual visitors from America usually join in the European afternoon, around 15:00 CET, or 9:00 a.m. EST.
Gala screenings
A gala screening at Cannes scheduled for 20:00 CEST takes place at 14:00 EDT. An American guest can watch it live over lunch.
The Berlin marathon
The early start
The race starts at about 9:15 CEST, which is 3:15 a.m. EDT. Americans who want to see a record attempt must get up in the middle of the night.
The finish
An elite runner finishes in about two hours, at 11:15 CEST or 5:15 a.m. EDT. The same moment is the end of the morning for Berliners and a long night for viewers in America.
How to convert CET to EST, step by step
Subtract six hours
CET is UTC+1 and EST is UTC−5, so Eastern time is six hours behind the European clock. Subtract 6 from the European time. If the result is negative, add 24 and move to the previous date.
Eight pairs
03:00 CET is 21:00 EST the day before. 06:00 CET is 00:00 EST. 09:00 CET is 03:00 EST. 12:00 CET is 06:00 EST. 15:30 CET is 09:30 EST. 18:00 CET is 12:00 EST. 21:00 CET is 15:00 EST. 23:45 CET is 17:45 EST. Only the first crosses into the previous date.
In the summer months
In summer, CEST against EDT is still six hours. 20:00 CEST is 14:00 EDT. The figure does not change; only the labels of the clocks do.
The American eastern zone
Where it applies
UTC−5, Eastern Standard Time, is the winter clock for a long chain of cities along the Atlantic coast, from Montreal to Miami, with New York, Washington and Atlanta on the way. In summer they move to EDT, UTC−4.
Why it matters to you
Everything announced nationally in the United States uses Eastern time. A European who wants to catch a live broadcast therefore needs to convert CET to EST.
Central European time
Countries and clocks
CET, UTC+1, is the winter clock of Germany, France, Italy, Spain, Poland, Austria and Switzerland. In summer they move to CEST, UTC+2, from the last Sunday in March until the last Sunday in October.
Romania
Romania runs an hour ahead of Berlin, so a reader there subtracts seven hours, not six, to reach Eastern time.
Six hours between continents
The working day
A European office day of 09:00 to 17:00 corresponds to 03:00 to 11:00 on the Eastern clock. The American day corresponds to 15:00 to 23:00 on the European one. The two days meet for only two hours, from 15:00 to 17:00 CET.
Who calls first
A Frankfurt office calling New York should do it in the afternoon: 15:00 CET is 9:00 a.m. EST. A call at 11:00 CET reaches 5:00 a.m. EST, when nobody is at their desk.
Across the ocean
An aircraft that takes off from Frankfurt at 10:00 CET and flies for nearly nine hours reaches the American airport at 13:00 EST. The ticket shows 10:00 and 13:00, so the trip seems to last only three hours.
Stage races on two wheels
The afternoon finish
Stages in the European summer end around 17:30 CEST, which is 11:30 a.m. EDT. Americans can see the finish during their lunch break.
The start
The start is at 13:30 CEST, which is 7:30 a.m. EDT. A fan in New York has coffee in front of the broadcast.
The Munich beer festival
The official opening
The first keg is tapped at 12:00 CEST, which is 6:00 a.m. EDT. Many American viewers follow the ceremony before work.
Evenings in the tents
A music programme at 20:00 CEST is at 2:00 p.m. EDT. For someone in New York, the evening is really lunchtime.
One European hour, four seasons
January
On Thursday 15 January, an event announced for 15:00 CET begins at 09:00 EST. Nobody has changed a clock, so the usual six hours apply.
March
On Thursday 12 March, the same European hour means 10:00 on New York’s clock, not 09:00. The reason is that the United States advanced its clocks on 8 March while Europe waits until the 29th, so for three weeks the distance shrinks to five hours.
July
On Thursday 16 July, the 15:00 CEST announcement reads 09:00 EDT. Both continents are on summer time, and the sum is back to six hours.
October and November
On Thursday 29 October, 15:00 CET means 10:00 EDT, because the old continent set its clocks back a week earlier. On Thursday 12 November, 15:00 CET is 09:00 EST again.
The weeks when the clocks do not match
The three weeks of spring
America moves its clocks three weeks before Europe, on 8 March against 29 March. Between those dates, the real difference between CET and Eastern time is five hours, not six.
The week in autumn
In autumn the situation reverses: Europe returns to standard time on 25 October and America on 1 November, so for one week the gap is again five hours. A “convert CET to EST” calculation on standard time has to be corrected by an hour in those periods.
Other clocks, counted from Berlin
How many hours to add or subtract
Starting from Central European time, London is one hour behind, New York six, Chicago seven and Los Angeles nine. To the east, Dubai is three hours ahead and Delhi four and a half.
An example for invitations
When it is noon in Berlin, it is 11:00 in London, 6:00 a.m. in New York and 3:00 a.m. in Los Angeles. A sender who writes the invitation with all the hours spares the recipient a “convert CET to EST” calculation of their own.
European night trains
The evening departure
A night train that leaves at 21:30 CET and arrives the next day at 08:30 CET leaves at 15:30 EST on the clock of an American passenger booking from afar, and arrives at 02:30 EST.
Bookings
Reservations open at fixed hours by European time. Whoever does a “convert CET to EST” calculation for the start of sales knows when to be online.
Language lessons online with European tutors
Lesson time
A German lesson scheduled for 18:00 CET is at 12:00 EST, during a New York pupil’s lunch break. Pupils in Los Angeles follow it at 9:00 a.m. PST, before work.
Cancellations and rescheduling
A cancellation 24 hours in advance means, in American time, the same hour on the previous day. A “convert CET to EST” calculation for both hours avoids paying for a lesson that was missed by accident.
How the clock changes affect this pair
Period by period
The difference between CET and EST depends on the date. In 2026: 1 January to 7 March, 29 March to 24 October and 1 November to 31 December — EST runs 6 hours behind CET; 8 to 28 March and 25 to 31 October — EST runs 5 hours behind CET.
How to apply it
During the summer periods the zones are called CEST and EDT. The calculator assumes the winter gap of 6 hours; adjust by the difference shown for your date. To convert CET to EST correctly, start by locating your date in this list.
Hour-by-hour conversion chart
CET to EST, every hour
00:00 CET corresponds to 18:00 EST (previous day). 01:00 CET corresponds to 19:00 EST (previous day). 02:00 CET corresponds to 20:00 EST (previous day). 03:00 CET corresponds to 21:00 EST (previous day). 04:00 CET corresponds to 22:00 EST (previous day). 05:00 CET corresponds to 23:00 EST (previous day). 06:00 CET corresponds to 00:00 EST. 07:00 CET corresponds to 01:00 EST. 08:00 CET corresponds to 02:00 EST. 09:00 CET corresponds to 03:00 EST. 10:00 CET corresponds to 04:00 EST. 11:00 CET corresponds to 05:00 EST. 12:00 CET corresponds to 06:00 EST. 13:00 CET corresponds to 07:00 EST. 14:00 CET corresponds to 08:00 EST. 15:00 CET corresponds to 09:00 EST. 16:00 CET corresponds to 10:00 EST. 17:00 CET corresponds to 11:00 EST. 18:00 CET corresponds to 12:00 EST. 19:00 CET corresponds to 13:00 EST. 20:00 CET corresponds to 14:00 EST. 21:00 CET corresponds to 15:00 EST. 22:00 CET corresponds to 16:00 EST. 23:00 CET corresponds to 17:00 EST.
A short guide
Each entry converts one full hour from CET to EST, flagging any change of date. If you only need to convert CET to EST once, the form above is quicker; for many readings, keep this chart at hand. Only the hour moves. Minutes pass through unchanged, which makes this pair easy to check by eye. Read these rows as standard-time values and check the period section for dates where the difference changes.
The :30 rows
CET to EST, thirty minutes past
00:30 CET corresponds to 18:30 EST (previous day). 01:30 CET corresponds to 19:30 EST (previous day). 02:30 CET corresponds to 20:30 EST (previous day). 03:30 CET corresponds to 21:30 EST (previous day). 04:30 CET corresponds to 22:30 EST (previous day). 05:30 CET corresponds to 23:30 EST (previous day). 06:30 CET corresponds to 00:30 EST. 07:30 CET corresponds to 01:30 EST. 08:30 CET corresponds to 02:30 EST. 09:30 CET corresponds to 03:30 EST. 10:30 CET corresponds to 04:30 EST. 11:30 CET corresponds to 05:30 EST. 12:30 CET corresponds to 06:30 EST. 13:30 CET corresponds to 07:30 EST. 14:30 CET corresponds to 08:30 EST. 15:30 CET corresponds to 09:30 EST. 16:30 CET corresponds to 10:30 EST. 17:30 CET corresponds to 11:30 EST. 18:30 CET corresponds to 12:30 EST. 19:30 CET corresponds to 13:30 EST. 20:30 CET corresponds to 14:30 EST. 21:30 CET corresponds to 15:30 EST. 22:30 CET corresponds to 16:30 EST. 23:30 CET corresponds to 17:30 EST.
Purpose of the list
These are the readings people forget to check: events at :30. Look up the CET time and read the EST time beside it instead of repeating the calculation. The gap used here is the standard winter one; the period section lists the dates on which it differs.
Conversions with minutes
CET into EST
01:05 CET corresponds to 19:05 EST (previous day). 03:20 CET corresponds to 21:20 EST (previous day). 05:50 CET corresponds to 23:50 EST (previous day). 07:35 CET corresponds to 01:35 EST. 10:10 CET corresponds to 04:10 EST. 13:25 CET corresponds to 07:25 EST. 16:40 CET corresponds to 10:40 EST. 19:55 CET corresponds to 13:55 EST. 22:15 CET corresponds to 16:15 EST. 23:05 CET corresponds to 17:05 EST.
How to check
Each line shows how a time with minutes is carried across. The offset has no minutes in it, so a reading of :45 stays :45 after the conversion. These rows use the standard (winter) gap; on the dates listed in the period section the gap is different.
Daily rhythm at the other end
EST time of day for chosen CET hours
06:00 CET corresponds to 00:00 EST (night). 08:00 CET corresponds to 02:00 EST (night). 10:00 CET corresponds to 04:00 EST (night). 12:00 CET corresponds to 06:00 EST (early morning). 14:00 CET corresponds to 08:00 EST (morning). 16:00 CET corresponds to 10:00 EST (morning). 18:00 CET corresponds to 12:00 EST (around midday). 20:00 CET corresponds to 14:00 EST (afternoon). 22:00 CET corresponds to 16:00 EST (afternoon).
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 CET to EST for a call. Read these rows as standard-time values and check the period section for dates where the difference changes.
Before you convert CET to EST: a short checklist
First
Confirm the zones
Romania is not on CET: it uses Eastern European Time, one hour ahead. In Australia EST means UTC+10; on this page it means the Eastern zone of North America at UTC−5.
Use a 24-hour clock
The 24-hour clock avoids a.m. and p.m. slips, so rewrite 4:30 p.m. as 16:30 before anything else. For example, 09:15 CET becomes 03:15 EST.
Then
The operation
Subtract 6 hours. If the result passes midnight, correct the date: readings before 06:00 fall on the previous date.
A second example
Try a later hour: 22:40 CET is 16:40 EST.
Mistakes when you convert CET to EST
Adding instead of subtracting
Because EST runs behind CET, the result must be an earlier clock reading. A later one points to an addition.
Losing the date
CET readings before 06:00 fall on the previous date. If the date stays put, the answer is a full day out.
The standard figure in the wrong weeks
The gap between CET and EST is not the same on every date in 2026. Check the period list above before you rely on the standard figure.
Confusing the abbreviation
CET covers Central Europe; Romania is one hour further east on EET. Check that an EST in a schedule is American or Canadian rather than Australian before you convert.
Questions and answers
By how much do CET and EST differ?
6 hours, and EST is behind CET. That is the standard figure; on some dates in 2026 it differs, as the period list shows.
How do I convert CET to EST?
Subtract 6 hours from the CET time, then fix the date if the result passes midnight.
How much is 21:45 CET in EST?
15:45 EST in the standard period.
Does the answer change during the year?
Yes, on some dates; the period list above shows which.
Does the page keep what I type?
No. Nothing leaves the page.
Related conversions
You may also want Convert CET to CST, Convert CET to EET, Convert EET to EST, Convert UTC to EST, Convert EST to EET, Convert CST to CET, Convert PST to IST, Convert EET to WET, Convert WET to CST. To go the other way, use Convert EST to CET.
The short version: subtract 6 hours, check the date, and you can convert CET to EST with confidence. No account is needed.