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.

Stockholm to IRST

+1h 30m

Stockholm

CESTSOURCE

Sweden · UTC+02:00☀ DST active

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

IRST

UTC+03:30

HH01

MM30

13:30 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Stockholm

IRST

12:00 AM

1:30 AM

2:00 AM

3:30 AM

4:00 AM

5:30 AM

6:00 AM

7:30 AM

8:00 AM

9:30 AM

10:00 AM

11:30 AM

12:00 PM

1:30 PM

2:00 PM

3:30 PM

4:00 PM

5:30 PM

6:00 PM

7:30 PM

8:00 PM

9:30 PM

10:00 PM

11:30 PM

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

CEST and IRST on the World Map

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

CEST Zone

→

IRST Zone

Explore all world timezones interactively →

CET – Central European Time

UTC+01:00

Central European Time (CET) is used across most of Western and Central Europe, 1 hour ahead of UTC.

Countries in CET

GermanyFranceItalySpainNetherlandsBelgiumAustriaSwitzerlandPolandCzech RepublicSwedenNorwayDenmarkHungaryCroatiaSerbiaSlovakiaSloveniaBosnia and HerzegovinaNorth MacedoniaAlbaniaMontenegroLuxembourgMaltaTunisiaAlgeriaNigeria

Major Cities in CET

ParisBerlinRomeMadridAmsterdamBrusselsViennaWarsawZurichStockholmOsloCopenhagenPragueBudapestBarcelonaMunichMilanLagos

Key Facts about CET

•CET covers more European countries than any other time zone.
•Spain uses CET despite being geographically aligned with GMT/WET.
•The Frankfurt Stock Exchange, Euronext (Amsterdam/Paris), and Borsa Italiana operate on CET.
•Over 500 million people live in the CET time zone.
•France moved to CET during the German occupation in WWII and never switched back.

Daylight Saving:Yes – switches to CEST

Learn more about CET 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

About Stockholm

Wikipedia

Stockholm operates on Central European Time (CET/CEST). As a global startup hub (home to Spotify, Klarna), Stockholm time coordinates Nordic tech markets.

Population:975,000

Metro:2.4 million

Business Hours:8:00 AM - 5:00 PM CET

Currency:SEK (kr)

Stock Exchange:Nasdaq Stockholm

Key Landmarks

Gamla StanRoyal PalaceVasa MuseumStockholm City HallDjurgården

Did You Know?

Stockholm is spread across 14 islands connected by 57 bridges.

Learn more about CEST timezone →

Understanding the +1h 30m Gap: Stockholm vs IRST

Stockholm runs on Central European Summer Time (CEST) at UTC+02:00, currently observing daylight saving time. IRST runs on Iran Standard Time (IRST) at UTC+03:30. That puts Stockholm 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 Stockholm it is 10:30 AM in IRST. Midnight in Stockholm is 1:30 AM in IRST.Stockholm observes daylight saving time while IRST does not, so the gap narrows or widens by an hour part of the year.

Stockholm to IRST time conversion table

Stockholm (CEST)	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 Stockholm to IRST time

Scheduling a call from Stockholm to IRST: a 10:00 AM start in Stockholm lands at 11:30 AM in IRST, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both Stockholm and IRST are inside the 9-to-5 working day between 9:00 AM and 3:30 PM CEST time (10:30 AM–5:00 PM IRST). That is roughly 6 hours 30 minutes of usable overlap.
Watching a live event or market open: Stockholm viewers need 10:30 AM in IRST to catch a 9:00 AM start there, and 10:30 PM if the event is anchored to Stockholm.

Always state the zone abbreviation, not just the hour. "3:00 PM CEST" is unambiguous; "3 PM" across a +1h 30m gap is not.
Block 9:00 AM–3:30 PM CEST as the recurring meeting window if you work primarily from Stockholm and need IRST colleagues present.
Stockholm: Clocks fall back on Sun, Oct 25, 2026. Re-check this page after that date because the offset changes and so does the +1h 30m gap.

About CET (Central European Time)

Central European Time (CET) is the standard time zone for most of Europe, covering over 30 countries from Spain to Poland, and from Norway to Italy. CET is 1 hour ahead of GMT and is used by the European Union's most populous nations. During summer, most CET countries switch to Central European Summer Time (CEST, UTC+02:00). Major European financial markets in Frankfurt, Paris, and Amsterdam operate on CET.

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 Stockholm and IRST

Both Stockholm and IRST sit inside the 9 AM – 5 PM working day between 9:00 AM–3:30 PM CEST, 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

Stockholm and IRST share 6 hours of working-hours overlap (9:00 AM–3:30 PM CEST), so scheduling a live meeting is straightforward.

Stockholm is 1 hour 30 minutes ahead of IRST (CEST UTC+02:00 → IRST UTC+03:30). The shared working window is 9:00 AM–3:30 PM CEST. Remember to re-check around daylight-saving transitions.

🕐 Daylight Saving Time Info

Stockholm

☀ Currently in DST

Standard: UTC+01:00 · DST: UTC+02:00

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 Stockholm and IRST?

Stockholm (CEST, 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 Stockholm time to IRST time?

Add +1h 30m to Stockholm local time. For example, 9:00 AM in Stockholm 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 Stockholm.

What is the best time to call IRST from Stockholm?

Call between 9:00 AM and 3:30 PM CEST — that maps to 10:30 AM–5:00 PM IRST and keeps both parties inside the working day.

Which is ahead, Stockholm or IRST?

Stockholm is 1 hour 30 minutes ahead of IRST. When it is 12:00 PM in Stockholm it is 1:30 PM in IRST.

Do Stockholm and IRST use different time zones?

Stockholm (Sweden) uses CEST at UTC+02:00, while IRST uses IRST at UTC+03:30. The IANA identifiers are Europe/Stockholm and Asia/Tehran.

Does daylight saving time affect the Stockholm–IRST difference?

Yes at the moment: Stockholm is on daylight saving time and IRST is not, so the +1h 30m gap shifts by an hour when exactly one of them changes clocks.

Which other cities share Stockholm's time zone?

CEST also covers Paris, Berlin, Rome, Madrid, Amsterdam, Brussels, Vienna, Warsaw and 10 more.

Which countries use CEST, Stockholm's zone?

CEST is used in Germany, France, Italy, Spain, Netherlands, Belgium, Austria, Switzerland and 19 more.

Is there a day difference between Stockholm and IRST?

Not normally. The +1h 30m gap only pushes the date over for late-evening times.

What is the time difference between Stockholm and IRST?

IRST is +1h 30m from Stockholm.

What timezone is Stockholm in?

Stockholm operates on Central European Time (CET/CEST). As a global startup hub (home to Spotify, Klarna), Stockholm time coordinates Nordic tech markets.