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).

AWST to IST

-2h 30m

AWST

AWSTSOURCE

UTC+08:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

IST

UTC+05:30

HH09

MM30

09:30 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

AWST

IST

12:00 AM

9:30 PM-1

2:00 AM

11:30 PM-1

4:00 AM

1:30 AM

6:00 AM

3:30 AM

8:00 AM

5:30 AM

10:00 AM

7:30 AM

12:00 PM

9:30 AM

2:00 PM

11:30 AM

4:00 PM

1:30 PM

6:00 PM

3:30 PM

8:00 PM

5:30 PM

10:00 PM

7:30 PM

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

AWST and IST on the World Map

The map below highlights the AWST (Australian Western Standard Time) and IST (India Standard Time) timezone regions across the globe.

AWST Zone

→

IST Zone

Explore all world timezones interactively →

AWST – Australian Western Standard Time

UTC+08:00

Australian Western Standard Time (AWST) is the time zone for Western Australia, 8 hours ahead of UTC.

Countries in AWST

Australia (Western Australia)

Major Cities in AWST

PerthMandurahBunburyGeraldton

Key Facts about AWST

•Western Australia does not observe daylight saving time.
•Perth is the most isolated major city in the world.
•AWST is the same offset as China Standard Time and Singapore Time.

Daylight Saving:No – UTC+08:00 year-round

Learn more about AWST on Wikipedia

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

Everything You Need to Know About AWST and IST Time

AWST runs on Australian Western Standard Time (AWST) at UTC+08:00. IST runs on India Standard Time (IST) at UTC+05:30. That puts AWST 2 hours 30 minutes behind IST — a difference of -2h 30m at the current offsets.

In practice, when it is 9:00 AM in AWST it is 6:30 AM in IST. Midnight in AWST is 9:30 PM in IST. Neither zone observes daylight saving time, so the offset between them stays constant all year.

AWST to IST time conversion table

AWST (AWST)	IST (IST)	Day
12:00 AM	9:30 PM	previous day
6:00 AM	3:30 AM	same day
7:00 AM	4:30 AM	same day
8:00 AM	5:30 AM	same day
9:00 AM	6:30 AM	same day
12:00 PM	9:30 AM	same day
3:00 PM	12:30 PM	same day
5:00 PM	2:30 PM	same day
6:00 PM	3:30 PM	same day
9:00 PM	6:30 PM	same day

Why people convert AWST to IST time

Scheduling a call from AWST to IST: a 10:00 AM start in AWST lands at 7:30 AM in IST, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both AWST and IST are inside the 9-to-5 working day between 11:30 AM and 5:00 PM AWST time (9:00 AM–2:30 PM IST). That is roughly 5 hours 30 minutes of usable overlap.
Booking travel or deliveries: tracking IST local time against AWST keeps pickup windows and arrival estimates honest across the -2h 30m offset.

Always state the zone abbreviation, not just the hour. "3:00 PM AWST" is unambiguous; "3 PM" across a -2h 30m gap is not.
Block 11:30 AM–5:00 PM AWST as the recurring meeting window if you work primarily from AWST and need IST colleagues present.

About AWST (Australian Western Standard Time)

Australian Western Standard Time (AWST) is used in Western Australia. WA does not observe daylight saving time, having rejected it in multiple referendums. Perth is the most remote major city in the world.

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.

Best time to call between AWST and IST

Both AWST and IST sit inside the 9 AM – 5 PM working day between 11:30 AM–5:00 PM AWST, which is 9:00 AM–2:30 PM IST. That gives roughly 5 hours and 30 minutes of shared time — the safest window for a live call or meeting.

Business hours overlap

AWST and IST share 5 hours of working-hours overlap (11:30 AM–5:00 PM AWST), so scheduling a live meeting is straightforward.

AWST is 2 hours 30 minutes behind IST (AWST UTC+08:00 → IST UTC+05:30). The shared working window is 11:30 AM–5:00 PM AWST. 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 AWST and IST?

AWST (AWST, UTC+08:00) is 2 hours 30 minutes behind IST (IST, UTC+05:30). The gap is currently -2h 30m.

How do I convert AWST time to IST time?

Add -2h 30m to AWST local time. For example, 9:00 AM in AWST is 6:30 AM in IST.

What time is it in IST right now?

IST uses IST at UTC+05:30. Use the live converter at the top of this page — it updates in real time and already accounts for the -2h 30m offset from AWST.