Convert UTC to EST Coordinated Universal Time ↔ Eastern Standard Time Free Online Secure
Type a time in UTC and read it in EST straight away. The offset is −5 h, the arithmetic wraps at midnight, and the answer says which day it lands on.
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Through the day — Convert UTC to EST (Coordinated Universal Time ↔ Eastern Standard Time)
| UTC | EST |
|---|---|
| 00:00 | 19:00 |
| 03:00 | 22:00 |
| 06:00 | 01:00 |
| 09:00 | 04:00 |
| 12:00 | 07:00 |
| 15:00 | 10:00 |
| 18:00 | 13:00 |
| 21:00 | 16:00 |
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.
From the world’s reference time to a New York clock
Machines speak UTC and people speak local time. A weather bulletin says 12Z, a cloud dashboard shows 14:00:00 UTC, a rate-limit message promises a reset at 00:00 UTC, and the person reading it is in Boston, Toronto or Atlanta. To convert UTC to EST, subtract five hours. 12:00 UTC is 07:00 EST, 14:00 UTC is 09:00 EST, and 00:00 UTC is 19:00 EST on the previous evening. Anything before 05:00 UTC lands on the previous calendar day in the eastern United States.
This page walks through the rule, gives two lookup tables, explains what the label EST means and what happens when the East Coast moves to EDT, and then covers cases from application programming interfaces to hurricane advisories, from military messages to retail sales. Everything is computed in your browser, and nothing you type is sent to a server.
How to convert UTC to EST
Subtract five hours from UTC
EST is UTC−5. Take five hours off the UTC reading. If the result is negative, add 24 hours and move back one date. 03:20 UTC gives −1:40, which is 22:40 EST on the previous day.
Eight readings to learn
00:30 UTC is 19:30 EST on the previous day. 06:15 UTC is 01:15 EST. 09:00 UTC is 04:00 EST. 12:00 UTC is 07:00 EST. 15:45 UTC is 10:45 EST. 18:00 UTC is 13:00 EST. 21:30 UTC is 16:30 EST. 23:45 UTC is 18:45 EST. Only the first crosses into the previous date.
The same instant written two ways
An ISO timestamp 2026-01-13T14:00:00Z denotes the same moment as 2026-01-13T09:00:00-05:00. The second form carries the offset, so any program that reads it can recover the instant without a rule book for American summer time. When you convert UTC to EST, you are in effect moving from the first form to the second.
UTC in practice
The fixed point
UTC never changes its clock. It is kept by the International Bureau of Weights and Measures from a few hundred atomic clocks, with leap seconds added from time to time to keep it close to Earth’s rotation. Computers, aeroplanes, satellites and financial systems use it to stay synchronised, which is why every serious attempt to convert UTC to EST starts from it.
Why systems store it
Local times repeat and vanish when clocks change. On 1 November 2026, the hour from 01:00 to 02:00 happens twice in New York. On 8 March, the hour from 02:00 to 03:00 does not happen at all. UTC has neither problem.
EST and the eastern clock
The cities
Eastern Standard Time, UTC−5, is the winter clock of New York, Boston, Philadelphia, Washington, Charlotte, Atlanta, Miami, Detroit, Toronto and Montreal. In summer the same places use Eastern Daylight Time, UTC−4, from the second Sunday in March to the first Sunday in November.
Places that stay on EST
Panama, Jamaica and the Cayman Islands remain on UTC−5 all year, as do Colombia, Peru and Ecuador’s mainland. For them, the conversion from UTC is always five hours, in every season.
Five hours and the working day
Windows for engineers
An engineer in New York working from 09:00 to 17:00 EST is at work from 14:00 to 22:00 UTC. A colleague in Europe working from 08:00 to 16:00 UTC overlaps only from 14:00 to 16:00 UTC, which is 09:00 to 11:00 EST. Incident reviews and design meetings are squeezed into that morning window.
Deployments
A release at 14:00 UTC happens at 09:00 EST on the East Coast, an hour when the support team has just arrived. A release at 02:00 UTC happens at 21:00 EST, when the team is at home. Choose the hour on purpose, and do the “convert UTC to EST” calculation before you announce the window to customers, because a maintenance notice that is wrong by five hours is worse than none at all.
Reports that end at midnight UTC
A daily report that closes at 00:00 UTC covers the period from 19:00 EST the previous day to 19:00 EST of the current day. A sale at 20:00 EST therefore appears in tomorrow’s report. Accountants have to be told.
When the East Coast moves and UTC does not
Eastern Daylight Time
The United States starts daylight saving time on the second Sunday of March and ends it on the first Sunday of November. In 2026 that means 8 March and 1 November. Between those dates the East Coast is four hours behind UTC rather than five, so 14:00 UTC is 10:00 EDT.
What it does to schedules
A job that runs at 14:00 UTC all year hits the East Coast at 09:00 in winter and 10:00 in summer. Whenever a team wants a task to run at 09:00 local time all year, the UTC time must change in March and November.
What the calculator does
The form above subtracts five hours, the standard winter figure. For a date between 8 March and 1 November, subtract only four and read the result as EDT. The relationship with UTC is exact; it is only the East Coast clock that shifts.
Rate limits and daily resets
Midnight in UTC
Many web services reset their daily quotas at 00:00 UTC. For a developer in New York, that moment falls at 19:00 EST, in the middle of the evening, and a script that has just exhausted the day’s quota can start again then. In summer it falls at 20:00 EDT. When you convert UTC to EST, you are working out the minute at which the allowance replenishes.
Counting requests
Dashboards that show “requests today” usually count from 00:00 UTC. A burst of calls at 23:00 EST belongs to the next UTC day, so monthly statements will not match a local calendar unless you convert.
Version-control timestamps
Commits and contribution graphs
Code hosting sites draw contribution graphs by UTC day. A commit made at 21:30 EST on Monday is stamped 02:30 UTC on Tuesday, and so it is counted for Tuesday. Developers who push late in the evening in New York sometimes find their streak broken or unexpectedly extended.
Reading a commit date
A commit shows its offset, for instance Mon Jan 12 21:30:00 2026 -0500. Adding five hours gives 02:30 UTC on 13 January. This is a faithful convert UTC to EST that never needs a calendar of clock changes.
Zulu time in military and aviation messages
The date-time group
Military messages carry a date-time group such as 131900Z JAN 26, which means the 13th day at 19:00 UTC in January 2026. In New York that is 14:00 EST on the same day. The letter Z replaces the word UTC, and it is the key to avoid any reference to local time.
Flight plans
A flight plan filed with a departure time of 0830Z departs at 03:30 EST. The same plan shows an arrival estimate in Zulu as well. A pilot flying from Europe to New York reads local time only on the final approach, from the airport information service.
Hurricane and storm advisories
Four bulletins a day
The National Hurricane Center issues advisories at fixed hours, normally four times a day. Each bulletin lists the time in local terms and in UTC. In UTC these are 03:00, 09:00, 15:00 and 21:00, which are 22:00, 04:00, 10:00 and 16:00 EST the previous or same day. In the hurricane season the East Coast is on EDT, and the local hours shift by an hour.
How to read the time on a map
A warning “in effect until 18Z” expires at 18:00 UTC, which is 13:00 EST in winter and 14:00 EDT in the season of storms. Always check which label the map uses before you convert.
Sales events and launch minutes
Black Friday starts earlier than you think
Online retailers often open a sale at 00:00 on the Friday after Thanksgiving, in their local time. For a New York company, that is 05:00 UTC. A shopper in London sees the offer at 05:00 GMT, so they can be awake before work. A “convert UTC to EST” calculation on the exact opening minute avoids waking up too early or too late.
Product drops
Limited-edition releases are often scheduled for 10:00 a.m. Eastern. In UTC that is 15:00 in winter and 14:00 in summer. Buyers in Europe who see “3 p.m.” on a website sometimes assume it is their own local time.
Amateur radio and propagation
Logbooks in UTC
Radio amateurs keep their logs in UTC, so a contact made at 23:15 UTC is recorded under that time regardless of where the operator lives. In New York the contact was made at 18:15 EST. When you share a log with a club overseas, no conversion is needed, but when you describe your evening, you do.
Contests
International contests run from 00:00 UTC on Saturday until 24:00 UTC on Sunday. For an East Coast operator, that means from 19:00 EST on Friday to 19:00 EST on Sunday, which fills most of a weekend.
Television, streaming and live events
Live broadcast schedules
International events are often given in UTC for global audiences. A final scheduled for 20:00 UTC starts at 15:00 EST. A pre-show at 19:00 UTC starts at 14:00 EST. A viewer in New York can watch after lunch, while a viewer in Tokyo is already in the middle of the night.
Time stamps in chat
Chat transcripts show local times, so a comment posted at 15:03 EST is stamped 20:03 UTC. When you convert a transcript into a single timeline, the “convert UTC to EST” calculation should be applied to every line.
Every hour in one table
UTC to EST
00:00 UTC corresponds to 19:00 EST (previous day). 01:00 UTC corresponds to 20:00 EST (previous day). 02:00 UTC corresponds to 21:00 EST (previous day). 03:00 UTC corresponds to 22:00 EST (previous day). 04:00 UTC corresponds to 23:00 EST (previous day). 05:00 UTC corresponds to 00:00 EST. 06:00 UTC corresponds to 01:00 EST. 07:00 UTC corresponds to 02:00 EST. 08:00 UTC corresponds to 03:00 EST. 09:00 UTC corresponds to 04:00 EST. 10:00 UTC corresponds to 05:00 EST. 11:00 UTC corresponds to 06:00 EST. 12:00 UTC corresponds to 07:00 EST. 13:00 UTC corresponds to 08:00 EST. 14:00 UTC corresponds to 09:00 EST. 15:00 UTC corresponds to 10:00 EST. 16:00 UTC corresponds to 11:00 EST. 17:00 UTC corresponds to 12:00 EST. 18:00 UTC corresponds to 13:00 EST. 19:00 UTC corresponds to 14:00 EST. 20:00 UTC corresponds to 15:00 EST. 21:00 UTC corresponds to 16:00 EST. 22:00 UTC corresponds to 17:00 EST. 23:00 UTC corresponds to 18:00 EST.
How to read it
Each entry pairs a UTC hour with the matching eastern hour and says when the date changes. The rows were produced by subtracting five hours, which is what the calculator does when you convert UTC to EST.
Half-hour marks
UTC to EST at :30
00:30 UTC corresponds to 19:30 EST (previous day). 01:30 UTC corresponds to 20:30 EST (previous day). 02:30 UTC corresponds to 21:30 EST (previous day). 03:30 UTC corresponds to 22:30 EST (previous day). 04:30 UTC corresponds to 23:30 EST (previous day). 05:30 UTC corresponds to 00:30 EST. 06:30 UTC corresponds to 01:30 EST. 07:30 UTC corresponds to 02:30 EST. 08:30 UTC corresponds to 03:30 EST. 09:30 UTC corresponds to 04:30 EST. 10:30 UTC corresponds to 05:30 EST. 11:30 UTC corresponds to 06:30 EST. 12:30 UTC corresponds to 07:30 EST. 13:30 UTC corresponds to 08:30 EST. 14:30 UTC corresponds to 09:30 EST. 15:30 UTC corresponds to 10:30 EST. 16:30 UTC corresponds to 11:30 EST. 17:30 UTC corresponds to 12:30 EST. 18:30 UTC corresponds to 13:30 EST. 19:30 UTC corresponds to 14:30 EST. 20:30 UTC corresponds to 15:30 EST. 21:30 UTC corresponds to 16:30 EST. 22:30 UTC corresponds to 17:30 EST. 23:30 UTC corresponds to 18:30 EST.
Why it is useful
Many schedules use half-hour slots, for instance a job at 02:30 UTC. The table shows the matching eastern time at a glance.
Ten readings with minutes
Examples
01:05 UTC corresponds to 20:05 EST (previous day). 03:20 UTC corresponds to 22:20 EST (previous day). 05:50 UTC corresponds to 00:50 EST. 07:35 UTC corresponds to 02:35 EST. 10:10 UTC corresponds to 05:10 EST. 13:25 UTC corresponds to 08:25 EST. 16:40 UTC corresponds to 11:40 EST. 19:55 UTC corresponds to 14:55 EST. 22:15 UTC corresponds to 17:15 EST. 23:05 UTC corresponds to 18:05 EST.
The minutes stay the same
Because the offset is a whole number of hours, the minutes in the answer match those in the question.
What part of the day is it in New York?
Eastern hours for each UTC hour
06:00 UTC corresponds to 01:00 EST (night). 08:00 UTC corresponds to 03:00 EST (night). 10:00 UTC corresponds to 05:00 EST (early morning). 12:00 UTC corresponds to 07:00 EST (early morning). 14:00 UTC corresponds to 09:00 EST (morning). 16:00 UTC corresponds to 11:00 EST (morning). 18:00 UTC corresponds to 13:00 EST (around midday). 20:00 UTC corresponds to 15:00 EST (afternoon). 22:00 UTC corresponds to 17:00 EST (afternoon).
Using the list
The words in brackets describe the part of the day on the East Coast. They help you avoid scheduling something for the middle of the night.
The American zones from UTC
The ladder
Subtract five hours for Eastern, six for Central, seven for Mountain and eight for Pacific. Alaska is nine and Hawaii ten. In summer subtract one hour less for each zone that observes daylight saving time.
One moment on four clocks
When UTC reads 18:00, New York reads 13:00, Chicago 12:00, Denver 11:00 and Los Angeles 10:00. An invitation that lists all four lets nobody have to convert UTC to EST for themselves.
Dated examples through the year
January
On Wednesday 14 January, 16:00 UTC is 11:00 EST. No daylight saving time is in force, so subtract five hours.
Mid-March
On Wednesday 18 March, 16:00 UTC is 12:00 EDT. The United States moved on 8 March, so subtract four hours.
July
On Wednesday 15 July, 16:00 UTC is 12:00 EDT. Four hours apply throughout the summer.
Early November
On Wednesday 4 November, 16:00 UTC is 11:00 EST. The East Coast went back to standard time on 1 November.
Checklist: how to convert UTC to EST
Before
Read the label
EST or EDT? If the source says ET and the date is between 8 March and 1 November, treat it as EDT, UTC−4.
Choose the clock format
Use 24 hours. 4:30 p.m. is 16:30, and 12:00 a.m. is 00:00.
After
Subtract five
If the result is negative, add 24 and use the previous date.
Check the date
UTC readings from 00:00 to 04:59 fall on the previous date in New York.
Mistakes when you convert UTC to EST
Adding instead of subtracting
New York is behind UTC. If your answer is later than the UTC time, you added.
Treating EST as year-round
In summer the East Coast is on EDT, four hours behind UTC. Check the date before subtracting five.
Losing the previous date
01:00 UTC is 20:00 EST on the previous day. Keeping the date creates a 24-hour error.
Applying the wrong city
Panama and Jamaica stay on UTC−5 all year, unlike New York. Check the place.
Frequently asked questions
How far apart are UTC and EST?
Five hours, with EST behind.
How do I convert UTC to EST?
Subtract five hours, adding 24 and stepping back a date if the result is negative.
What is 14:00 UTC in EST?
09:00 EST.
Why do I sometimes subtract four hours?
Because the East Coast uses EDT, UTC−4, from the second Sunday in March to the first Sunday in November.
Is my input uploaded?
No. It stays in your browser.
More time zone converters
Related pages: Convert UTC to IST, Convert UTC to GMT, Convert PST to EST, Convert CST to EST, Convert EST to IST, Convert CST to UTC, Convert EST to EET, Convert CST to EET, Convert EST to PST. For the reverse direction, open Convert EST to UTC.
In brief, to convert UTC to EST you subtract five hours, mind the previous date and switch to four hours when the East Coast is on summer time. The work is done locally, with no sign-up and no upload.