EET to IRST
+1h 30mEET
EETSOURCEIRST
IRSTGreen rows indicate typical business hours (9 AM - 5 PM)
EET and IRST on the World Map
The map below highlights the EET (Eastern European Time) and IRST (Iran Standard Time) timezone regions across the globe.
EET – Eastern European Time
UTC+02:00Eastern European Time (EET) is used in Eastern Europe, the Middle East, and northeastern Africa, 2 hours ahead of UTC.
- •EET covers countries across three continents: Europe, Asia, and Africa.
- •Cairo is the most populous city in the EET zone.
- •Turkey used to be on EET but permanently moved to UTC+03:00 in 2016.
- •Finland, the Baltic states, and Greece all use EET.
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.
Understanding the +1h 30m Gap: EET vs IRST
EET runs on Eastern European Time (EET) at UTC+02:00. IRST runs on Iran Standard Time (IRST) at UTC+03:30. That puts EET 1 hour 30 minutes ahead of IRST — a difference of +1h 30m at the current offsets.
In practice, when it is 9:00 AM in EET it is 10:30 AM in IRST. Midnight in EET is 1:30 AM in IRST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
EET to IRST time conversion table
| EET (EET) | IRST (IRST) | Day |
|---|---|---|
| 12:00 AM | 1:30 AM | same day |
| 6:00 AM | 7:30 AM | same day |
| 7:00 AM | 8:30 AM | same day |
| 8:00 AM | 9:30 AM | same day |
| 9:00 AM | 10:30 AM | same day |
| 12:00 PM | 1:30 PM | same day |
| 3:00 PM | 4:30 PM | same day |
| 5:00 PM | 6:30 PM | same day |
| 6:00 PM | 7:30 PM | same day |
| 9:00 PM | 10:30 PM | same day |
Why people convert EET to IRST time
- Scheduling a call from EET to IRST: a 10:00 AM start in EET lands at 11:30 AM in IRST, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both EET and IRST are inside the 9-to-5 working day between 9:00 AM and 3:30 PM EET time (10:30 AM–5:00 PM IRST). That is roughly 6 hours 30 minutes of usable overlap.
- Coordinating a EET-based team with IRST 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 EET" is unambiguous; "3 PM" across a +1h 30m gap is not.
- Block 9:00 AM–3:30 PM EET as the recurring meeting window if you work primarily from EET and need IRST colleagues present.
About EET (Eastern European Time)
Eastern European Time (EET) covers a wide geographical area including Eastern Europe (Finland, Greece, Romania, Bulgaria, Ukraine), the Middle East (Israel, Lebanon, Jordan), and northeastern Africa (Egypt, Libya). During summer, most EET countries switch to Eastern European Summer Time (EEST, UTC+03:00). Turkey permanently moved to UTC+03:00 in 2016, effectively leaving EET.
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 EET and IRST
Both EET and IRST sit inside the 9 AM – 5 PM working day between 9:00 AM–3:30 PM EET, which is 10:30 AM–5:00 PM IRST. That gives roughly 6 hours and 30 minutes of shared time — the safest window for a live call or meeting.
Business hours overlap
EET and IRST share 6 hours of working-hours overlap (9:00 AM–3:30 PM EET), so scheduling a live meeting is straightforward.
EET is 1 hour 30 minutes ahead of IRST (EET UTC+02:00 → IRST UTC+03:30). The shared working window is 9:00 AM–3:30 PM EET. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
EET
☀ Currently in DST
Standard: UTC+02:00 · DST: UTC+03:00
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 EET and IRST?
EET (EET, UTC+02:00) is 1 hour 30 minutes ahead of IRST (IRST, UTC+03:30). The gap is currently +1h 30m.
How do I convert EET time to IRST time?
Add +1h 30m to EET local time. For example, 9:00 AM in EET is 10:30 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 +1h 30m offset from EET.
What is the best time to call IRST from EET?
Call between 9:00 AM and 3:30 PM EET — that maps to 10:30 AM–5:00 PM IRST and keeps both parties inside the working day.
Which is ahead, EET or IRST?
EET is 1 hour 30 minutes ahead of IRST. When it is 12:00 PM in EET it is 1:30 PM in IRST.
Does daylight saving time affect the EET–IRST difference?
Neither zone observes daylight saving time, so the +1h 30m offset between EET and IRST is fixed all year.
Which other cities share EET's time zone?
EET also covers Cairo, Athens, Helsinki, Bucharest, Kyiv, Sofia, Jerusalem, Tel Aviv and 4 more.
Which countries use EET, EET's zone?
EET is used in Finland, Greece, Romania, Bulgaria, Ukraine, Egypt, Israel, Lebanon and 9 more.
Is there a day difference between EET and IRST?
Not normally. The +1h 30m gap only pushes the date over for late-evening times.
What is the time difference between EET and IRST?
IRST is +1h 30m from EET.
What timezone is EET in?
EET operates on its local timezone.
What timezone is IRST in?
IRST operates on its local timezone.
Which countries use EET (Eastern European Time)?
EET is used in Finland, Greece, Romania, Bulgaria, Ukraine, Egypt, and 11 more countries.
Does EET observe daylight saving time?
Yes, EET switches to EEST during summer months.
What are some interesting facts about EET?
EET covers countries across three continents: Europe, Asia, and Africa. Cairo is the most populous city in the EET zone.
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 EET, what time is it in IRST?
When it is 12:00 AM (midnight) in EET (EET), it is +1h 30m later in IRST (IRST).
Related Developer Tools
Explore more tools that work great with timezone conversions for international teams:
Related Timezone Conversions
More EET time conversions
- eet to athens
- eet to eest
- eet to greece
- eet to new york
- eet to london
- eet to dubai
- eet to tokyo
- eet to singapore
- eet to sydney
- eet to los angeles
- eet to paris
- eet to delhi
- eet to mumbai
- eet to berlin
- eet to hong kong
- eet to toronto
- eet to kathmandu
- new york to eet
- london to eet
- dubai to eet
- tokyo to eet
- singapore to eet
- sydney to eet
- los angeles to eet
- paris to eet
- delhi to eet
- mumbai to eet
- berlin to eet
- hong kong to eet
- toronto to eet
- kathmandu to eet
See every conversion from EET →·See every conversion from IRST →