Portugal to IRST
+2h 30mPortugal
WESTSOURCEIRST
IRSTGreen rows indicate typical business hours (9 AM - 5 PM)
WEST and IRST on the World Map
The map below highlights the WEST (Western European Time) and IRST (Iran Standard 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.
IRST – Iran Standard Time
UTC+03:30Iran Standard Time (IRST) is the time zone for Iran, 3 hours and 30 minutes ahead of UTC.
- •IRST is one of only a few time zones with a 30-minute offset.
- •Iran observes daylight saving time, switching to IRDT (UTC+04:30).
- •Tehran has a metropolitan population of over 16 million.
Time Conversion Guide: Portugal to IRST
Portugal runs on Western European Summer Time (WEST) at UTC+01:00, currently observing daylight saving time. IRST runs on Iran Standard Time (IRST) at UTC+03:30. That puts Portugal 2 hours 30 minutes ahead of IRST — a difference of +2h 30m at the current offsets.
In practice, when it is 9:00 AM in Portugal it is 11:30 AM in IRST. Midnight in Portugal is 2:30 AM in IRST.Portugal observes daylight saving time while IRST does not, so the gap narrows or widens by an hour part of the year.
Portugal to IRST time conversion table
| Portugal (WEST) | IRST (IRST) | Day |
|---|---|---|
| 12:00 AM | 2:30 AM | same day |
| 6:00 AM | 8:30 AM | same day |
| 7:00 AM | 9:30 AM | same day |
| 8:00 AM | 10:30 AM | same day |
| 9:00 AM | 11:30 AM | same day |
| 12:00 PM | 2:30 PM | same day |
| 3:00 PM | 5:30 PM | same day |
| 5:00 PM | 7:30 PM | same day |
| 6:00 PM | 8:30 PM | same day |
| 9:00 PM | 11:30 PM | same day |
Why people convert Portugal to IRST time
- Scheduling a call from Portugal to IRST: a 10:00 AM start in Portugal lands at 12:30 PM in IRST, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Portugal and IRST are inside the 9-to-5 working day between 9:00 AM and 2:30 PM WEST time (11:30 AM–5:00 PM IRST). That is roughly 5 hours 30 minutes of usable overlap.
- Keeping family and friends in sync: knowing that 8:00 PM in Portugal is 10:30 PM in IRST 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 +2h 30m gap is not.
- Block 9:00 AM–2:30 PM WEST as the recurring meeting window if you work primarily from Portugal and need IRST 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 +2h 30m gap.
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 IRST (Iran Standard Time)
Iran Standard Time (IRST) is one of the few time zones with a 30-minute offset. Iran observes daylight saving time (IRDT, UTC+04:30) from late March to late September. Tehran, the capital, is one of the largest cities in the Middle East.
Best time to call between Portugal and IRST
Both Portugal and IRST sit inside the 9 AM – 5 PM working day between 9:00 AM–2:30 PM WEST, which is 11:30 AM–5:00 PM IRST. That gives roughly 5 hours and 30 minutes of shared time — the safest window for a live call or meeting.
Business hours overlap
Portugal and IRST share 5 hours of working-hours overlap (9:00 AM–2:30 PM WEST), so scheduling a live meeting is straightforward.
Portugal is 2 hours 30 minutes ahead of IRST (WEST UTC+01:00 → IRST UTC+03:30). The shared working window is 9:00 AM–2:30 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
IRST
Does not observe DST
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 IRST?
Portugal (WEST, UTC+01:00) is 2 hours 30 minutes ahead of IRST (IRST, UTC+03:30). The gap is currently +2h 30m.
How do I convert Portugal time to IRST time?
Add +2h 30m to Portugal local time. For example, 9:00 AM in Portugal is 11:30 AM in IRST.
What time is it in IRST right now?
IRST uses IRST at UTC+03:30. Use the live converter at the top of this page — it updates in real time and already accounts for the +2h 30m offset from Portugal.
What is the best time to call IRST from Portugal?
Call between 9:00 AM and 2:30 PM WEST — that maps to 11:30 AM–5:00 PM IRST and keeps both parties inside the working day.
Which is ahead, Portugal or IRST?
Portugal is 2 hours 30 minutes ahead of IRST. When it is 12:00 PM in Portugal it is 2:30 PM in IRST.
Do Portugal and IRST use different time zones?
Portugal (Portugal) uses WEST at UTC+01:00, while IRST uses IRST at UTC+03:30. The IANA identifiers are Europe/Lisbon and Asia/Tehran.
Does daylight saving time affect the Portugal–IRST difference?
Yes at the moment: Portugal is on daylight saving time and IRST is not, so the +2h 30m gap shifts by an hour when exactly one of them changes clocks.
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.
Is there a day difference between Portugal and IRST?
Not normally. The +2h 30m gap only pushes the date over for late-evening times.
What is the time difference between Portugal and IRST?
IRST is +2h 30m from Portugal.
What timezone is Portugal in?
Portugal operates on its local timezone.
What timezone is IRST in?
IRST 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 IRST timezone?
Major cities in the IRST timezone include Tehran, Isfahan, Mashhad, Tabriz, Shiraz, Karaj.
What is the UTC offset for IRST?
Iran Standard Time (IRST) is at UTC+03:30. During daylight saving time, it shifts to IRDT.
What should I know about the IRST timezone?
IRST is one of only a few time zones with a 30-minute offset. Iran observes daylight saving time, switching to IRDT (UTC+04:30).
When is it midnight in Portugal, what time is it in IRST?
When it is 12:00 AM (midnight) in Portugal (WET), it is +2h 30m later in IRST (IRST).
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