Does it account for Daylight Saving Time?

Yes, our converter uses the IANA timezone database, which includes all current DST rules for every timezone in the world.

UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks. All timezones are defined as offsets from UTC.

Can I compare multiple timezones at once?

Yes, you can add multiple cities or timezones and see the equivalent times side by side.

How many timezones are there in the world?

There are 38 distinct UTC offsets in use, ranging from UTC-12 to UTC+14. This includes half-hour (UTC+5:30 India, UTC+9:30 Australia) and 45-minute offsets (UTC+5:45 Nepal, UTC+8:45 Australia).

What is the International Date Line?

The International Date Line (IDL) runs roughly along the 180° meridian in the Pacific Ocean. When you cross it westward, you gain a day; crossing eastward, you lose a day.

Why do some timezones have 30 or 45 minute offsets?

Countries chose offsets that best matched their solar noon. India uses UTC+5:30 and Nepal uses UTC+5:45 because standard hourly offsets didn't align well with their geography.

Which country has the most timezones?

France has the most (12 timezones) due to overseas territories. Russia spans 11 timezones. The US has 6 (including Hawaii and Alaska).

Bangalore to Iran

-2h

Bangalore

ISTSOURCE

India · UTC+05:30

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Iran

IRST

UTC+03:30

HH10

MM00

10:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Bangalore

Iran

12:00 AM

10:00 PM-1

2:00 AM

12:00 AM

4:00 AM

2:00 AM

6:00 AM

4:00 AM

8:00 AM

6:00 AM

10:00 AM

8:00 AM

12:00 PM

10:00 AM

2:00 PM

12:00 PM

4:00 PM

2:00 PM

6:00 PM

4:00 PM

8:00 PM

6:00 PM

10:00 PM

8:00 PM

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

IST and IRST on the World Map

The map below highlights the IST (India Standard Time) and IRST (Iran Standard Time) timezone regions across the globe.

IST Zone

→

IRST Zone

Explore all world timezones interactively →

IST – India Standard Time

UTC+05:30

India Standard Time (IST) is the time zone for India and Sri Lanka, 5 hours and 30 minutes ahead of UTC.

Countries in IST

IndiaSri Lanka

Major Cities in IST

MumbaiDelhiBangaloreKolkataChennaiHyderabadPuneAhmedabadColomboJaipurLucknowSurat

Key Facts about IST

•India is 10 hours 30 minutes ahead of EST and 5 hours 30 minutes ahead of GMT.
•India uses a single time zone despite spanning 30° of longitude.
•IST is one of only a handful of time zones with a 30-minute offset.
•IST is the most populous single time zone in the world with over 1.4 billion people.
•The Bombay Stock Exchange (BSE) and National Stock Exchange (NSE) operate on IST.

Daylight Saving:No – UTC+05:30 year-round

Learn more about IST 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 Bangalore

Wikipedia

Bangalore operates on India Standard Time (IST), UTC+5:30. As India's tech capital, Bangalore time is crucial for global IT outsourcing coordination.

Population:8.4 million

Metro:13.2 million

Business Hours:9:30 AM - 6:30 PM IST

Currency:INR (₹)

Stock Exchange:NSE/BSE (via Mumbai)

Key Landmarks

Bangalore PalaceLalbagh Botanical GardenCubbon ParkVidhana SoudhaISKCON Temple

Did You Know?

The city has the most breweries of any Indian city and is called the 'Pub Capital of India.'

Learn more about IST timezone →

Comparing Time Zones: Bangalore and Iran

Bangalore runs on India Standard Time (IST) at UTC+05:30. Iran runs on Iran Standard Time (IRST) at UTC+03:30. That puts Bangalore 2 hours behind Iran — a difference of -2h at the current offsets.

In practice, when it is 9:00 AM in Bangalore it is 7:00 AM in Iran. Midnight in Bangalore is 10:00 PM in Iran. Neither zone observes daylight saving time, so the offset between them stays constant all year.

Bangalore to Iran time conversion table

Bangalore (IST)	Iran (IRST)	Day
12:00 AM	10:00 PM	previous day
6:00 AM	4:00 AM	same day
7:00 AM	5:00 AM	same day
8:00 AM	6:00 AM	same day
9:00 AM	7:00 AM	same day
12:00 PM	10:00 AM	same day
3:00 PM	1:00 PM	same day
5:00 PM	3:00 PM	same day
6:00 PM	4:00 PM	same day
9:00 PM	7:00 PM	same day

Why people convert Bangalore to Iran time

Scheduling a call from Bangalore to Iran: a 10:00 AM start in Bangalore lands at 8:00 AM in Iran, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both Bangalore and Iran are inside the 9-to-5 working day between 11:00 AM and 5:00 PM IST time (9:00 AM–3:00 PM IRST). That is roughly 6 hours of usable overlap.
Watching a live event or market open: Bangalore viewers need 7:00 AM in Iran to catch a 9:00 AM start there, and 2:00 AM if the event is anchored to Bangalore.

Always state the zone abbreviation, not just the hour. "3:00 PM IST" is unambiguous; "3 PM" across a -2h gap is not.
Block 11:00 AM–5:00 PM IST as the recurring meeting window if you work primarily from Bangalore and need Iran colleagues present.

About IST (India Standard Time)

India Standard Time (IST) is the time observed throughout India and Sri Lanka. It is based on the 82.5°E meridian, passing through Mirzapur in Uttar Pradesh. India uses a single time zone despite spanning roughly 30° of longitude, which has been debated. IST does not observe daylight saving time. India is the world's most populous country, making IST one of the most-used time zones globally. The IT outsourcing industry and call centers operate primarily on IST, making the EST-to-IST conversion one of the most searched timezone conversions.

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 Bangalore and Iran

Both Bangalore and Iran sit inside the 9 AM – 5 PM working day between 11:00 AM–5:00 PM IST, which is 9:00 AM–3:00 PM IRST. That gives roughly 6 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

Bangalore and Iran share 6 hours of working-hours overlap (11:00 AM–5:00 PM IST), so scheduling a live meeting is straightforward.

Bangalore is 2 hours behind Iran (IST UTC+05:30 → IRST UTC+03:30). The shared working window is 11:00 AM–5:00 PM IST. Remember to re-check around daylight-saving transitions.

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 Bangalore and Iran?

Bangalore (IST, UTC+05:30) is 2 hours behind Iran (IRST, UTC+03:30). The gap is currently -2h.

How do I convert Bangalore time to Iran time?

Add -2h to Bangalore local time. For example, 9:00 AM in Bangalore is 7:00 AM in Iran.

What time is it in Iran right now?

Iran 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 offset from Bangalore.