Does it handle Daylight Saving Time?

Yes, the tool automatically adjusts for Daylight Saving Time based on the specific date you select, ensuring accurate conversions year-round.

Can I add multiple cities?

Yes, you can add as many cities as you need to the dashboard to compare times across your entire global network simultaneously.

Bucharest to IRST

+0h 30m

Bucharest

EESTSOURCE

Romania · UTC+03:00☀ DST active

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

IRST

UTC+03:30

HH12

MM30

12:30 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Bucharest

IRST

12:00 AM

12:30 AM

2:00 AM

2:30 AM

4:00 AM

4:30 AM

6:00 AM

6:30 AM

8:00 AM

8:30 AM

10:00 AM

10:30 AM

12:00 PM

12:30 PM

2:00 PM

2:30 PM

4:00 PM

4:30 PM

6:00 PM

6:30 PM

8:00 PM

8:30 PM

10:00 PM

10:30 PM

Green rows indicate typical business hours (9 AM - 5 PM)

EEST and IRST on the World Map

The map below highlights the EEST (Eastern European Time) and IRST (Iran Standard Time) timezone regions across the globe.

EEST Zone

→

IRST Zone

Explore all world timezones interactively →

EET – Eastern European Time

UTC+02:00

Eastern European Time (EET) is used in Eastern Europe, the Middle East, and northeastern Africa, 2 hours ahead of UTC.

Countries in EET

FinlandGreeceRomaniaBulgariaUkraineEgyptIsraelLebanonJordanLithuaniaLatviaEstoniaMoldovaLibyaSyriaPalestineCyprus

Major Cities in EET

CairoAthensHelsinkiBucharestKyivSofiaJerusalemTel AvivBeirutVilniusRigaTallinn

Key Facts about EET

•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.

Daylight Saving:Yes – switches to EEST

Learn more about EET on Wikipedia

IRST – Iran Standard Time

UTC+03:30

Iran Standard Time (IRST) is the time zone for Iran, 3 hours and 30 minutes ahead of UTC.

Countries in IRST

Iran

Major Cities in IRST

TehranIsfahanMashhadTabrizShirazKaraj

Key Facts about IRST

•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.

Daylight Saving:Yes – switches to IRDT

Learn more about IRST on Wikipedia

Comparing Time Zones: Bucharest and IRST

Bucharest runs on Eastern European Summer Time (EEST) at UTC+03:00, currently observing daylight saving time. IRST runs on Iran Standard Time (IRST) at UTC+03:30. That puts Bucharest 30 minutes ahead of IRST — a difference of +0h 30m at the current offsets.

In practice, when it is 9:00 AM in Bucharest it is 9:30 AM in IRST. Midnight in Bucharest is 12:30 AM in IRST.Bucharest observes daylight saving time while IRST does not, so the gap narrows or widens by an hour part of the year.

Bucharest to IRST time conversion table

Bucharest (EEST)	IRST (IRST)	Day
12:00 AM	12:30 AM	same day
6:00 AM	6:30 AM	same day
7:00 AM	7:30 AM	same day
8:00 AM	8:30 AM	same day
9:00 AM	9:30 AM	same day
12:00 PM	12:30 PM	same day
3:00 PM	3:30 PM	same day
5:00 PM	5:30 PM	same day
6:00 PM	6:30 PM	same day
9:00 PM	9:30 PM	same day

Why people convert Bucharest to IRST time

Scheduling a call from Bucharest to IRST: a 10:00 AM start in Bucharest lands at 10:30 AM in IRST, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both Bucharest and IRST are inside the 9-to-5 working day between 9:00 AM and 4:30 PM EEST time (9:30 AM–5:00 PM IRST). That is roughly 7 hours 30 minutes of usable overlap.
Keeping family and friends in sync: knowing that 8:00 PM in Bucharest is 8:30 PM in IRST makes it easy to avoid calling at 3 AM.

Always state the zone abbreviation, not just the hour. "3:00 PM EEST" is unambiguous; "3 PM" across a +0h 30m gap is not.
Block 9:00 AM–4:30 PM EEST as the recurring meeting window if you work primarily from Bucharest and need IRST colleagues present.
Bucharest: Clocks fall back on Sun, Oct 25, 2026. Re-check this page after that date because the offset changes and so does the +0h 30m gap.

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 Bucharest and IRST

Both Bucharest and IRST sit inside the 9 AM – 5 PM working day between 9:00 AM–4:30 PM EEST, which is 9:30 AM–5:00 PM IRST. That gives roughly 7 hours and 30 minutes of shared time — the safest window for a live call or meeting.

Business hours overlap

Bucharest and IRST share 7 hours of working-hours overlap (9:00 AM–4:30 PM EEST), so scheduling a live meeting is straightforward.

Bucharest is 30 minutes ahead of IRST (EEST UTC+03:00 → IRST UTC+03:30). The shared working window is 9:00 AM–4:30 PM EEST. Remember to re-check around daylight-saving transitions.

🕐 Daylight Saving Time Info

Bucharest

☀ 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:

⏳

History of Timekeeping

From sundials to atomic clocks - 5000 years of measuring time

🌍

How Time Zones Work

UTC, offsets, and why zones don't follow straight lines

☀️

Daylight Saving Time

DST dates, which countries observe it, and the ongoing debate

Frequently Asked Questions

What is the time difference between Bucharest and IRST?

Bucharest (EEST, UTC+03:00) is 30 minutes ahead of IRST (IRST, UTC+03:30). The gap is currently +0h 30m.

How do I convert Bucharest time to IRST time?

Add +0h 30m to Bucharest local time. For example, 9:00 AM in Bucharest is 9:30 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 +0h 30m offset from Bucharest.

What is the best time to call IRST from Bucharest?

Call between 9:00 AM and 4:30 PM EEST — that maps to 9:30 AM–5:00 PM IRST and keeps both parties inside the working day.

Which is ahead, Bucharest or IRST?

Bucharest is 30 minutes ahead of IRST. When it is 12:00 PM in Bucharest it is 12:30 PM in IRST.

Do Bucharest and IRST use different time zones?

Bucharest (Romania) uses EEST at UTC+03:00, while IRST uses IRST at UTC+03:30. The IANA identifiers are Europe/Bucharest and Asia/Tehran.

Does daylight saving time affect the Bucharest–IRST difference?

Yes at the moment: Bucharest is on daylight saving time and IRST is not, so the +0h 30m gap shifts by an hour when exactly one of them changes clocks.