Ireland to WET
-1hIreland
ISTSOURCEWET
WETGreen rows indicate typical business hours (9 AM - 5 PM)
IST and WET on the World Map
The map below highlights the IST (Greenwich Mean Time) and WET (Western European Time) timezone regions across the globe.
GMT – Greenwich Mean Time
UTC+00:00Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory in Greenwich, London. It is the same as UTC+00:00.
- •GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London.
- •The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
- •GMT and UTC are often used interchangeably, but UTC is based on atomic clocks.
- •Iceland uses GMT year-round and never observes daylight saving time.
- •The UK switches from GMT to BST (British Summer Time) in late March each year.
WET – Western European Time
UTC+00:00Western European Time (WET) is the time zone for Portugal, Morocco, and the Canary Islands, same as UTC+00:00.
- •Portugal is the only mainland European country in the WET time zone.
- •The Canary Islands are on WET despite being part of Spain (which uses CET).
- •WET is identical to GMT and UTC+00:00.
Ireland to WET Time Difference – Complete Guide
Ireland runs on Irish Standard Time (IST) at UTC+01:00, currently observing daylight saving time. WET runs on Western European Time (WET) at UTC+00:00. That puts Ireland 1 hour behind WET — a difference of -1h at the current offsets.
In practice, when it is 9:00 AM in Ireland it is 8:00 AM in WET. Midnight in Ireland is 11:00 PM in WET.Ireland observes daylight saving time while WET does not, so the gap narrows or widens by an hour part of the year.
Ireland to WET time conversion table
| Ireland (IST) | WET (WET) | Day |
|---|---|---|
| 12:00 AM | 11:00 PM | previous day |
| 6:00 AM | 5:00 AM | same day |
| 7:00 AM | 6:00 AM | same day |
| 8:00 AM | 7:00 AM | same day |
| 9:00 AM | 8:00 AM | same day |
| 12:00 PM | 11:00 AM | same day |
| 3:00 PM | 2:00 PM | same day |
| 5:00 PM | 4:00 PM | same day |
| 6:00 PM | 5:00 PM | same day |
| 9:00 PM | 8:00 PM | same day |
Why people convert Ireland to WET time
- Scheduling a call from Ireland to WET: a 10:00 AM start in Ireland lands at 9:00 AM in WET, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Ireland and WET are inside the 9-to-5 working day between 10:00 AM and 5:00 PM IST time (9:00 AM–4:00 PM WET). That is roughly 7 hours of usable overlap.
- Booking travel or deliveries: tracking WET local time against Ireland keeps pickup windows and arrival estimates honest across the -1h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM IST" is unambiguous; "3 PM" across a -1h gap is not.
- Block 10:00 AM–5:00 PM IST as the recurring meeting window if you work primarily from Ireland and need WET colleagues present.
- Ireland: Clocks fall back on Sun, Oct 25, 2026. Re-check this page after that date because the offset changes and so does the -1h gap.
About GMT (Greenwich Mean Time)
Greenwich Mean Time (GMT) is the clock time at the Royal Observatory in Greenwich, London, which sits on the Prime Meridian (0° longitude). GMT serves as the reference point from which all other time zones are calculated. The United Kingdom uses GMT during winter months and switches to British Summer Time (BST, UTC+01:00) from late March to late October. Several West African nations use GMT year-round. GMT is often used interchangeably with UTC (Coordinated Universal Time), although technically they are different – UTC is based on atomic clocks while GMT is based on Earth's rotation.
About WET (Western European Time)
Western European Time (WET) is used in Portugal, the Canary Islands (Spain), Morocco, and several other locations. It is equivalent to GMT/UTC. During summer, Portugal and the Canary Islands switch to WEST (Western European Summer Time, UTC+01:00).
Best time to call between Ireland and WET
Both Ireland and WET sit inside the 9 AM – 5 PM working day between 10:00 AM–5:00 PM IST, which is 9:00 AM–4:00 PM WET. That gives roughly 7 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Ireland and WET share 7 hours of working-hours overlap (10:00 AM–5:00 PM IST), so scheduling a live meeting is straightforward.
Ireland is 1 hour behind WET (IST UTC+01:00 → WET UTC+00:00). The shared working window is 10:00 AM–5:00 PM IST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
Ireland
☀ Currently in DST
Standard: UTC+00:00 · DST: UTC+01:00
Clocks fall back on Sun, Oct 25, 2026
WET
☀ Currently in DST
Standard: UTC+00:00 · DST: UTC+01:00
Clocks fall back on Sun, Oct 25, 2026
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between Ireland and WET?
Ireland (IST, UTC+01:00) is 1 hour behind WET (WET, UTC+00:00). The gap is currently -1h.
How do I convert Ireland time to WET time?
Add -1h to Ireland local time. For example, 9:00 AM in Ireland is 8:00 AM in WET.
What time is it in WET right now?
WET uses WET at UTC+00:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -1h offset from Ireland.
What is the best time to call WET from Ireland?
Call between 10:00 AM and 5:00 PM IST — that maps to 9:00 AM–4:00 PM WET and keeps both parties inside the working day.
Which is behind, Ireland or WET?
Ireland is 1 hour behind WET. When it is 12:00 PM in Ireland it is 11:00 AM in WET.
Do Ireland and WET use different time zones?
Ireland (Ireland) uses IST at UTC+01:00, while WET uses WET at UTC+00:00. The IANA identifiers are Europe/Dublin and Europe/Lisbon.
Does daylight saving time affect the Ireland–WET difference?
Yes at the moment: Ireland is on daylight saving time and WET is not, so the -1h gap shifts by an hour when exactly one of them changes clocks.
Which other cities share Ireland's time zone?
IST also covers London, Dublin, Lisbon, Accra, Reykjavik, Edinburgh, Casablanca, Dakar and 5 more.
Which countries use IST, Ireland's zone?
IST is used in United Kingdom, Ireland, Iceland, Portugal (mainland), Ghana, Senegal, Mali, Mauritania and 7 more.
Is there a day difference between Ireland and WET?
Not normally. The -1h gap only pushes the date over the previous day.
What is the time difference between Ireland and WET?
WET is -1h from Ireland.
What timezone is Ireland in?
Ireland operates on its local timezone.
What timezone is WET in?
WET operates on its local timezone.
Which countries use GMT (Greenwich Mean Time)?
GMT is used in United Kingdom, Ireland, Iceland, Portugal (mainland), Ghana, Senegal, and 9 more countries.
Does GMT observe daylight saving time?
Yes, GMT switches to BST during summer months.
What are some interesting facts about GMT?
GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London. The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
Which cities are in the WET timezone?
Major cities in the WET timezone include Lisbon, Porto, Casablanca, Las Palmas, Funchal, Rabat.
What is the UTC offset for WET?
Western European Time (WET) is at UTC+00:00. During daylight saving time, it shifts to WEST.
What should I know about the WET timezone?
Portugal is the only mainland European country in the WET time zone. The Canary Islands are on WET despite being part of Spain (which uses CET).
When is it midnight in Ireland, what time is it in WET?
When it is 12:00 AM (midnight) in Ireland (GMT), it is -1h later in WET (WET).
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