WET to Istanbul
+3hWET
WETSOURCEIstanbul
TRTGreen rows indicate typical business hours (9 AM - 5 PM)
WET and TRT on the World Map
The map below highlights the WET (Western European Time) and TRT (Turkey 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.
TRT – Turkey Time
UTC+03:00Turkey Time (TRT, UTC+03:00) is the single time zone used across Turkey, fixed year round since 2016.
- •Turkey has used a permanent UTC+03:00 since September 2016.
- •TRT is level with Moscow Standard Time and Arabia Standard Time all year.
- •Because Turkey kept summer time permanently, western cities see very late winter sunrises.
- •Turkey previously observed daylight saving time from 1973 to 2016.
About Istanbul
WikipediaIstanbul operates on Turkey Time (TRT), UTC+3 year-round. As a transcontinental city, Istanbul bridges European and Asian business hours.
The Grand Bazaar is one of the world's oldest and largest covered markets with 4,000+ shops.
WET vs Istanbul: Offsets, DST and Best Call Times
WET runs on Western European Time (WET) at UTC+00:00. Istanbul runs on Türkiye Standard Time (TRT) at UTC+03:00. That puts WET 3 hours ahead of Istanbul — a difference of +3h at the current offsets.
In practice, when it is 9:00 AM in WET it is 12:00 PM in Istanbul. Midnight in WET is 3:00 AM in Istanbul. Neither zone observes daylight saving time, so the offset between them stays constant all year.
WET to Istanbul time conversion table
| WET (WET) | Istanbul (TRT) | Day |
|---|---|---|
| 12:00 AM | 3:00 AM | same day |
| 6:00 AM | 9:00 AM | same day |
| 7:00 AM | 10:00 AM | same day |
| 8:00 AM | 11:00 AM | same day |
| 9:00 AM | 12:00 PM | same day |
| 12:00 PM | 3:00 PM | same day |
| 3:00 PM | 6:00 PM | same day |
| 5:00 PM | 8:00 PM | same day |
| 6:00 PM | 9:00 PM | same day |
| 9:00 PM | 12:00 AM | next day |
Why people convert WET to Istanbul time
- Scheduling a call from WET to Istanbul: a 10:00 AM start in WET lands at 1:00 PM in Istanbul, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both WET and Istanbul are inside the 9-to-5 working day between 9:00 AM and 2:00 PM WET time (12:00 PM–5:00 PM TRT). That is roughly 5 hours of usable overlap.
- Coordinating a WET-based team with Istanbul contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.
- Always state the zone abbreviation, not just the hour. "3:00 PM WET" is unambiguous; "3 PM" across a +3h gap is not.
- Block 9:00 AM–2:00 PM WET as the recurring meeting window if you work primarily from WET and need Istanbul colleagues present.
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 TRT (Turkey Time)
Turkey Time (TRT) is fixed at UTC+03:00 all year. Turkey abolished seasonal clock changes in September 2016, moving to a permanent UTC+03:00 so the whole country stays on what was formerly summer time. That leaves Istanbul, which sits close to 29°E, on an offset well ahead of its solar time — sunrise in mid-winter comes after 08:30 local. TRT shares its offset with Moscow Standard Time, Arabia Standard Time and East Africa Time, so Istanbul is level with Moscow and Riyadh all year and one hour ahead of Central European Time during the European winter.
Best time to call between WET and Istanbul
Both WET and Istanbul sit inside the 9 AM – 5 PM working day between 9:00 AM–2:00 PM WET, which is 12:00 PM–5:00 PM TRT. That gives roughly 5 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
WET and Istanbul share 5 hours of working-hours overlap (9:00 AM–2:00 PM WET), so scheduling a live meeting is straightforward.
WET is 3 hours ahead of Istanbul (WET UTC+00:00 → TRT UTC+03:00). The shared working window is 9:00 AM–2:00 PM WET. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
WET
☀ Currently in DST
Standard: UTC+00:00 · DST: UTC+01:00
Clocks fall back on Sun, Oct 25, 2026
Istanbul
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 WET and Istanbul?
WET (WET, UTC+00:00) is 3 hours ahead of Istanbul (TRT, UTC+03:00). The gap is currently +3h.
How do I convert WET time to Istanbul time?
Add +3h to WET local time. For example, 9:00 AM in WET is 12:00 PM in Istanbul.
What time is it in Istanbul right now?
Istanbul uses TRT at UTC+03:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +3h offset from WET.
What is the best time to call Istanbul from WET?
Call between 9:00 AM and 2:00 PM WET — that maps to 12:00 PM–5:00 PM TRT and keeps both parties inside the working day.
Which is ahead, WET or Istanbul?
WET is 3 hours ahead of Istanbul. When it is 12:00 PM in WET it is 3:00 PM in Istanbul.
Do WET and Istanbul use different time zones?
WET uses WET at UTC+00:00, while Istanbul (Turkey) uses TRT at UTC+03:00. The IANA identifiers are Europe/Lisbon and Europe/Istanbul.
Does daylight saving time affect the WET–Istanbul difference?
Neither zone observes daylight saving time, so the +3h offset between WET and Istanbul is fixed all year.
Which other cities share WET's time zone?
WET also covers Lisbon, Porto, Casablanca, Las Palmas, Funchal, Rabat.
Which countries use WET, WET's zone?
WET is used in Portugal, Spain (Canary Islands), Morocco, Western Sahara.
Is there a day difference between WET and Istanbul?
Not normally. The +3h gap only pushes the date over for late-evening times.
What is the time difference between WET and Istanbul?
Istanbul is +3h from WET.
What timezone is WET in?
WET operates on its local timezone.
What timezone is Istanbul in?
Istanbul operates on Turkey Time (TRT), UTC+3 year-round. As a transcontinental city, Istanbul bridges European and Asian business hours.
What are the business hours in Istanbul?
Standard business hours in Istanbul are 9:00 AM - 6:00 PM TRT.
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 TRT timezone?
Major cities in the TRT timezone include Istanbul, Ankara, Izmir, Bursa, Antalya.
What is the UTC offset for TRT?
Turkey Time (TRT) is at UTC+03:00.
What should I know about the TRT timezone?
Turkey has used a permanent UTC+03:00 since September 2016. TRT is level with Moscow Standard Time and Arabia Standard Time all year.
When is it midnight in WET, what time is it in Istanbul?
When it is 12:00 AM (midnight) in WET (WET), it is +3h later in Istanbul (TRT).
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See every conversion from WET →·See every conversion from Istanbul →