Convert UTC to WET Coordinated Universal Time ↔ Western European Time Free Online Secure
Coordinated Universal Time and Western European Time read the same on the clock — the offset is zero. Type a time in UTC and it comes back unchanged in WET, which is the honest answer; what differs between the two names is explained below.
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Through the day — Convert UTC to WET (Coordinated Universal Time ↔ Western European Time)
| UTC | WET |
|---|---|
| 00:00 | 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 |
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.
UTC against the clock of Portugal and the Atlantic islands
Lisbon, Porto, Funchal, Las Palmas and Tórshavn share a wall clock that agrees with UTC in winter and runs one hour ahead of it in summer. A tide table, a wind-farm report or a flight plan is written in UTC, while the people who use it read the local clock, so sooner or later someone has to convert UTC to WET. In winter the job is the easiest in the whole family of time zones: 09:00 UTC is 09:00 WET and 23:45 UTC is 23:45 WET on the same date. In summer the label becomes WEST at UTC+1, and 09:00 UTC is 10:00 on the Lisbon clock.
The sections below explain how to convert UTC to WET in both seasons, why the neighbouring Azores, Morocco and Iceland behave differently, and how the rule plays out in rowing races, elections, wind and solar power and weather bulletins. Everything is computed in your browser, and nothing you type is sent to a server.
How to convert UTC to WET
In winter, copy the time
Western European Time is UTC+0, the same as UTC. From the last Sunday of October to the last Sunday of March, 07:20 UTC is 07:20 WET and 00:05 UTC is 00:05 WET on the same date. Nothing is added or subtracted when you convert UTC to WET in this season.
In summer, add an hour
From 29 March to 25 October 2026 the wall clock in Portugal and the Canary Islands is WEST, UTC+1. Then 09:00 UTC is 10:00 WEST, and 23:30 UTC is 00:30 WEST on the following date. The form above shows the winter value, so for a summer date add one hour to the result.
A reference letter
When a bulletin writes 1200Z, the letter Z means UTC. On a Lisbon clock 1200Z is 12:00 in winter and 13:00 in summer.
UTC: the clock machines trust
No daylight saving
UTC never moves. It is maintained by atomic clocks and adjusted by leap seconds from time to time; the last one was added at the end of 2016. Grid operators, observatories and weather services use it because it is the same for everybody.
Several names for one thing
The same hour can appear as UTC, GMT, Z or +00:00. In technical documents they all mean the same, and for a Lisbon reader they match the wall clock only in winter.
WET and WEST
The territories
Western European Time is the winter clock of mainland Portugal, Madeira, the Canary Islands and the Faroe Islands. In summer they use WEST, at UTC+1. The main cities are Lisbon, Porto, Faro, Funchal, Las Palmas, Santa Cruz de Tenerife and Tórshavn.
Neighbours that differ
The Azores sit one hour behind the mainland: UTC−1 in winter and UTC+0 in summer. Morocco keeps UTC+1 for almost the whole year. Iceland stays on UTC+0 and has no summer time at all.
Zero hours or one, depending on the season
The working day
A Lisbon team that works 09:00 to 17:00 WET works the same hours in UTC in winter. In summer the same team, on WEST, works 08:00 to 16:00 UTC. A log that records events from 08:30 UTC therefore catches the start of the Portuguese day in summer but not in winter.
Maintenance windows
A window from 02:00 to 04:00 UTC falls at the same hours on the Lisbon clock in winter and from 03:00 to 05:00 in summer. Planners who want to avoid the peak hours of Portuguese users need to allow for that shift.
Daily totals
A report that closes at 00:00 UTC covers, in summer, the local day from 01:00 to 01:00. In winter the local day and the UTC day coincide. That is why charts drawn in UTC seem to slide against local ones at the end of March and the end of October.
The Atlantic rowing race
A start from La Gomera
Rowers who cross the Atlantic from the Canary Islands to the Caribbean leave La Gomera in December, when the islands are on WET. A start at midday local time is at 12:00 UTC, which is 13:00 in Madrid and 14:00 in Bucharest. Race organisers publish the schedule in UTC so that families in many countries can follow.
Position reports
Boats send their positions to the shore at fixed UTC hours, typically 00:00, 06:00, 12:00 and 18:00. Supporters on the islands see those reports at the same figures in winter. If you convert UTC to WET for a summer start, add one hour.
Election night in Portugal
Closing of the polls
Polling stations on the Portuguese mainland close at 19:00 local time. In winter, that is 19:00 UTC, and in summer 18:00 UTC. In the Azores they close an hour later by the mainland clock, since the islands are an hour behind. Early results are published about an hour after the mainland closing time.
Following from abroad
A viewer in London sees the closing at 19:00 in winter on the same clock, and at 19:00 BST in summer. A viewer in Romania sees it at 21:00 in winter and 21:00 EEST in summer. These coincidences make Portugal one of the easiest countries to follow from Britain.
Wind and solar output
Grid data in UTC
Portugal generates a large share of its electricity from wind and sun. The grid operator publishes hourly data in UTC. A solar peak at 12:00 UTC is at 12:00 on the local clock in winter and 13:00 in summer. Analysts who compare Portugal with Germany or Spain must put all series on one scale.
Prices by hour
Electricity prices are set for every hour. The hour from 18:00 to 19:00 UTC is the evening peak in winter at 18:00 local time. In summer the same UTC hour is 19:00 to 20:00 WEST, the actual evening peak. A “convert UTC to WET” calculation done with the date in mind keeps the peak where it belongs.
Atlantic storms and bulletins
Advisories in UTC
Meteorological services publish storm advisories in UTC. A bulletin issued at 03:00 UTC is at 03:00 in winter and 04:00 in summer on the mainland clock. Skippers and ferry operators should know which clock the warning uses.
Wave forecasts
Forecasts of large swells are given in UTC. A peak at 14:00 UTC on a January day is at 14:00 on the local clock. In the summer season, the swell is usually smaller, and an hour of error matters less.
Madeira’s airport and its winds
Reading a METAR
Funchal’s airport is famous for its crosswinds. Its weather reports carry the time in Zulu format: 121200Z means the 12th day at 12:00 UTC, which is 12:00 local in winter and 13:00 in summer. Pilots read the Zulu hour and passengers read the wall clock.
Delays
A flight cancelled at 0900Z because of wind is scheduled at 09:00 local time in winter and 10:00 in summer on the terminal screen. Passengers should note that the screen shows local time.
Flights across the Atlantic from Lisbon
Departures in UTC
Air traffic control works in UTC. A flight from Lisbon to New York that leaves at 11:00 UTC leaves at 11:00 WET in winter and at 12:00 WEST in summer. After about eight hours it lands at 19:00 UTC, which is 14:00 EST or 15:00 EDT.
For passengers
Tickets show local time. A departure printed as 12:00 WEST in July is 11:00 UTC. When you convert UTC to WET for a ticket, check the season first.
Fish auctions and ports
Early starts
Fish markets in Peniche, Matosinhos and Las Palmas open their auctions in the early morning. A sale at 05:30 local time is at 05:30 UTC in winter and at 04:30 UTC in summer. Buyers elsewhere in Europe who connect remotely must know which clock the programme uses.
Transport papers
Delivery notes show local times. A consignment loaded at 14:00 WEST in July was loaded at 13:00 UTC. Converting each stage tells you quickly whether the cold chain held.
Tides and surf on the Atlantic coast
Tide tables
Tide tables are often given in UTC. A high tide at 10:30 UTC is at 10:30 on the local clock in winter and at 11:30 in summer. Fishermen and surfers who read a table in UTC must add one hour in summer.
Big-wave forecasts
Forecasts for the giant waves at Nazaré are published in UTC. A peak at 14:00 UTC in January is at 14:00 local time. In summer the waves are small, so a one-hour slip matters little.
The Faroe Islands and the summer clock
Ferries and flights
The Faroe Islands use WET and WEST. A ferry announced for 09:15 WEST in July leaves at 08:15 UTC. In January the same departure at 09:15 WET is 09:15 UTC. Travellers who read a timetable without the label can be an hour out.
Short days
In winter the sun rises about 10:00 and sets about 15:00. Excursion times therefore cluster between 10:00 and 15:00 local time, which is the same in UTC.
Technology conferences in Lisbon
Autumn events
Lisbon hosts large technology conferences in November, when Portugal is on WET. Sessions at 10:00 begin at 10:00 UTC, and those at 17:00 begin at 17:00 UTC. Remote participants in Romania add two hours. When you convert UTC to WET for these events, you simply copy the hours.
Summer events
Events held in June, when Portugal is on WEST, run one hour ahead of UTC. A 10:00 session begins at 09:00 UTC, so an audience in London, on BST, sees it at 10:00.
Servers and logs in Portugal
What “server time” means
Data centres in Portugal use UTC internally, but admin consoles display the zone chosen in a profile. An incident at 03:30 UTC appears as 03:30 to an administrator set to Lisbon in winter and as 04:30 in summer. A team should agree on one zone.
Incident timelines
In a post-incident review, record every hour in UTC. If a colleague wrote “04:30” in a message, ask whether it was local or universal.
Zones around the Atlantic, counted from UTC
The ladder
From UTC add zero in winter and one in summer for Lisbon, the Canaries, Madeira and the Faroes. Subtract one in winter and nothing in summer for the Azores. Add one for Morocco almost all year. Add nothing for Iceland.
One moment on five clocks
At 12:00 UTC in winter, Lisbon reads 12:00, Ponta Delgada 11:00, Casablanca 13:00, Madrid 13:00 and Bucharest 14:00. Writing these in an invitation saves everyone from having to convert UTC to WET separately.
Dated examples
January
On Monday 19 January, 15:00 UTC is 15:00 WET. There is no difference in winter.
After the change
On Monday 30 March, 15:00 UTC is 16:00 WEST, since the clocks moved on 29 March.
July
On Monday 20 July, 15:00 UTC is 16:00 WEST. One hour applies all summer.
November
On Monday 2 November, 15:00 UTC is 15:00 WET again. The clocks went back on 25 October.
How the clock changes affect this pair
The year in segments
UTC and WET are not always the same distance apart. In 2026: 1 January to 28 March and 25 October to 31 December: UTC and WET show an identical hour; 29 March to 24 October — WET runs 1 hour ahead of UTC.
In practice
Summer labels are UTC and WEST. The form above applies the winter gap of 0 hours, so for other periods correct the answer by the difference from the figure listed. To convert UTC to WET correctly, start by locating your date in this list.
The full day, hour by hour
UTC hours and their WET equivalents
00:00 UTC = 00:00 WET. 01:00 UTC = 01:00 WET. 02:00 UTC = 02:00 WET. 03:00 UTC = 03:00 WET. 04:00 UTC = 04:00 WET. 05:00 UTC = 05:00 WET. 06:00 UTC = 06:00 WET. 07:00 UTC = 07:00 WET. 08:00 UTC = 08:00 WET. 09:00 UTC = 09:00 WET. 10:00 UTC = 10:00 WET. 11:00 UTC = 11:00 WET. 12:00 UTC = 12:00 WET. 13:00 UTC = 13:00 WET. 14:00 UTC = 14:00 WET. 15:00 UTC = 15:00 WET. 16:00 UTC = 16:00 WET. 17:00 UTC = 17:00 WET. 18:00 UTC = 18:00 WET. 19:00 UTC = 19:00 WET. 20:00 UTC = 20:00 WET. 21:00 UTC = 21:00 WET. 22:00 UTC = 22:00 WET. 23:00 UTC = 23:00 WET.
Reading the rows
Every line gives a UTC time and the WET time at the same instant, with a note wherever the date moves. It is the quickest check when you convert UTC to WET. The offset has no minutes in it, so a reading of :45 stays :45 after the conversion. Winter-time arithmetic applies to these rows; for the dates in the period section, correct the result accordingly.
Thirty minutes past, hour by hour
UTC into WET
00:30 UTC = 00:30 WET. 01:30 UTC = 01:30 WET. 02:30 UTC = 02:30 WET. 03:30 UTC = 03:30 WET. 04:30 UTC = 04:30 WET. 05:30 UTC = 05:30 WET. 06:30 UTC = 06:30 WET. 07:30 UTC = 07:30 WET. 08:30 UTC = 08:30 WET. 09:30 UTC = 09:30 WET. 10:30 UTC = 10:30 WET. 11:30 UTC = 11:30 WET. 12:30 UTC = 12:30 WET. 13:30 UTC = 13:30 WET. 14:30 UTC = 14:30 WET. 15:30 UTC = 15:30 WET. 16:30 UTC = 16:30 WET. 17:30 UTC = 17:30 WET. 18:30 UTC = 18:30 WET. 19:30 UTC = 19:30 WET. 20:30 UTC = 20:30 WET. 21:30 UTC = 21:30 WET. 22:30 UTC = 22:30 WET. 23:30 UTC = 23:30 WET.
Short explanation
Calls, flights and jobs frequently sit at half past. The list covers all twenty-four of them, which is handy if you have to convert UTC to WET for a long timetable. The gap used here is the standard winter one; the period section lists the dates on which it differs.
Ten readings with minutes
Examples from UTC to WET
01:05 UTC = 01:05 WET. 03:20 UTC = 03:20 WET. 05:50 UTC = 05:50 WET. 07:35 UTC = 07:35 WET. 10:10 UTC = 10:10 WET. 13:25 UTC = 13:25 WET. 16:40 UTC = 16:40 WET. 19:55 UTC = 19:55 WET. 22:15 UTC = 22:15 WET. 23:05 UTC = 23:05 WET.
What to notice
These are less round examples, with minutes. Only the hour moves. Minutes pass through unchanged, which makes this pair easy to check by eye. These rows use the standard (winter) gap; on the dates listed in the period section the gap is different.
The rhythm of the day in WET
Even-numbered UTC hours seen from WET
06:00 UTC = 06:00 WET (early morning). 08:00 UTC = 08:00 WET (morning). 10:00 UTC = 10:00 WET (morning). 12:00 UTC = 12:00 WET (around midday). 14:00 UTC = 14:00 WET (afternoon). 16:00 UTC = 16:00 WET (afternoon). 18:00 UTC = 18:00 WET (evening). 20:00 UTC = 20:00 WET (evening). 22:00 UTC = 22:00 WET (night).
Reading the labels
For every second hour of the UTC day the list gives the WET time and a word for the part of the day there. Use it to decide whether a request to convert UTC to WET gives a polite hour. Read these rows as standard-time values and check the period section for dates where the difference changes.
A quick routine to convert UTC to WET
Before the sum
Check the zone names
The suffix Z in a timestamp is simply UTC. WET is used by mainland Portugal, Madeira, the Canary Islands and the Faroe Islands; the Azores are an hour behind.
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 UTC becomes 09:15 WET.
Finishing
The operation
Copy the hours and minutes: in the standard period no date can change. For dates in the summer period listed above, apply the summer gap from that list instead.
A second example
Try a later hour: 22:40 UTC is 22:40 WET.
Traps to avoid when you convert UTC to WET
Copying in the wrong season
UTC and WET share one offset in the standard period, so the hours are simply copied. In the summer period listed above the gap is no longer zero, and copying would leave the answer an hour out.
The standard figure in the wrong weeks
On some dates in 2026 the distance between UTC and WET differs from the usual one, so read the period list before you apply it.
Confusing the abbreviation
The suffix Z in a timestamp is simply UTC. The Azores are not on WET: they sit one hour behind mainland Portugal.
Questions and answers
How far apart are UTC and WET?
Zero hours, and UTC and WET agree. That is the standard figure; on some dates in 2026 it differs, as the period list shows.
Which sum applies when I convert UTC to WET?
Copy the hours and minutes in the standard period; in the summer period listed above, adjust by one hour.
How much is 21:45 UTC in WET?
21:45 WET in the standard period.
Is the gap the same in every month?
No, it differs on some dates; the period list above shows which.
Is my input stored or uploaded?
No. Everything happens on your own device.
Other pairs worth a look
See also Convert UTC to PST, Convert UTC to EET, Convert GMT to WET, Convert IST to WET, Convert WET to CST, Convert EST to UTC, Convert UTC to CET, Convert IST to CST, Convert EET to CET. The opposite direction is Convert WET to UTC.
In brief, to convert UTC to WET you copy the time, mind the date change and watch the weeks when the gap differs.