Portugal to Dublin
+0hPortugal
WESTSOURCEDublin
ISTGreen rows indicate typical business hours (9 AM - 5 PM)
WEST and IST on the World Map
The map below highlights the WEST (Western European Time) and IST (Greenwich Mean Time) timezone regions across the globe.
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.
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.
Understanding the +0h Gap: Portugal vs Dublin
Portugal runs on Western European Summer Time (WEST) at UTC+01:00, currently observing daylight saving time. Dublin runs on Irish Standard Time (IST) at UTC+01:00, also currently on daylight saving time. That puts Portugal no time difference Dublin — a difference of +0h at the current offsets.
In practice, when it is 9:00 AM in Portugal it is 9:00 AM in Dublin. Midnight in Portugal is 12:00 AM in Dublin. Because both zones shift for daylight saving, the gap between them only changes during the few weeks each year when their transition dates differ.
Portugal to Dublin time conversion table
| Portugal (WEST) | Dublin (IST) | Day |
|---|---|---|
| 12:00 AM | 12:00 AM | same day |
| 6:00 AM | 6:00 AM | same day |
| 7:00 AM | 7:00 AM | same day |
| 8:00 AM | 8:00 AM | same day |
| 9:00 AM | 9:00 AM | same day |
| 12:00 PM | 12:00 PM | same day |
| 3:00 PM | 3:00 PM | same day |
| 5:00 PM | 5:00 PM | same day |
| 6:00 PM | 6:00 PM | same day |
| 9:00 PM | 9:00 PM | same day |
Why people convert Portugal to Dublin time
- Scheduling a call from Portugal to Dublin: a 10:00 AM start in Portugal lands at 10:00 AM in Dublin, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Portugal and Dublin are inside the 9-to-5 working day between 9:00 AM and 5:00 PM WEST time (9:00 AM–5:00 PM IST). That is roughly 8 hours of usable overlap.
- Keeping family and friends in sync: knowing that 8:00 PM in Portugal is 8:00 PM in Dublin makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM WEST" is unambiguous; "3 PM" across a +0h gap is not.
- Block 9:00 AM–5:00 PM WEST as the recurring meeting window if you work primarily from Portugal and need Dublin colleagues present.
- Portugal: Clocks fall back on Sun, Oct 25, 2026. Re-check this page after that date because the offset changes and so does the +0h gap.
- Dublin: Clocks fall back on Sun, Oct 25, 2026. Any meeting series spanning that date will shift by an hour in local time.
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).
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.
Best time to call between Portugal and Dublin
Both Portugal and Dublin sit inside the 9 AM – 5 PM working day between 9:00 AM–5:00 PM WEST, which is 9:00 AM–5:00 PM IST. That gives roughly 8 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Portugal and Dublin share 8 hours of working-hours overlap (9:00 AM–5:00 PM WEST), so scheduling a live meeting is straightforward.
Portugal is no time difference Dublin (WEST UTC+01:00 → IST UTC+01:00). The shared working window is 9:00 AM–5:00 PM WEST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
Portugal
☀ Currently in DST
Standard: UTC+00:00 · DST: UTC+01:00
Clocks fall back on Sun, Oct 25, 2026
Dublin
☀ 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 Portugal and Dublin?
Portugal (WEST, UTC+01:00) is no time difference Dublin (IST, UTC+01:00). The gap is currently +0h.
How do I convert Portugal time to Dublin time?
Add +0h to Portugal local time. For example, 9:00 AM in Portugal is 9:00 AM in Dublin.
What time is it in Dublin right now?
Dublin uses IST at UTC+01:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +0h offset from Portugal.
What is the best time to call Dublin from Portugal?
Call between 9:00 AM and 5:00 PM WEST — that maps to 9:00 AM–5:00 PM IST and keeps both parties inside the working day.
Which is ahead, Portugal or Dublin?
Portugal and Dublin are currently on the same clock.
Do Portugal and Dublin use different time zones?
Portugal (Portugal) uses WEST at UTC+01:00, while Dublin (Ireland) uses IST at UTC+01:00. The IANA identifiers are Europe/Lisbon and Europe/Dublin.
Does daylight saving time affect the Portugal–Dublin difference?
Both zones observe DST, so the difference stays at +0h for most of the year and only changes during the weeks when their transition dates do not line up.
Which other cities share Portugal's time zone?
WEST also covers Lisbon, Porto, Casablanca, Las Palmas, Funchal, Rabat.
Which countries use WEST, Portugal's zone?
WEST is used in Portugal, Spain (Canary Islands), Morocco, Western Sahara.
What is the time difference between Portugal and Dublin?
Dublin is +0h from Portugal.
What timezone is Portugal in?
Portugal operates on its local timezone.
What timezone is Dublin in?
Dublin operates on its local timezone.
Which countries use WET (Western European Time)?
WET is used in Portugal, Spain (Canary Islands), Morocco, Western Sahara.
Does WET observe daylight saving time?
Yes, WET switches to WEST during summer months.
What are some interesting facts about WET?
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).
Which cities are in the GMT timezone?
Major cities in the GMT timezone include London, Dublin, Lisbon, Accra, Reykjavik, Edinburgh, Casablanca, Dakar.
What is the UTC offset for GMT?
Greenwich Mean Time (GMT) is at UTC+00:00. During daylight saving time, it shifts to BST.
What should I know about the GMT timezone?
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.
When is it midnight in Portugal, what time is it in Dublin?
When it is 12:00 AM (midnight) in Portugal (WET), it is +0h later in Dublin (GMT).
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