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AEST to Mumbai

-4h 30m

AEST

AESTSOURCE
UTC+10:00DST observed
HH12
:
MM00
  
12:00 (24-hr)
12 AM6 AM12 PM6 PM12 AM

Mumbai

IST
India · UTC+05:30
HH07
:
MM30
  
07:30 (24-hr)
12 AM6 AM12 PM6 PM12 AM
AEST
Mumbai
12:00 AM
7:30 PM-1
2:00 AM
9:30 PM-1
4:00 AM
11:30 PM-1
6:00 AM
1:30 AM
8:00 AM
3:30 AM
10:00 AM
5:30 AM
12:00 PM
7:30 AM
2:00 PM
9:30 AM
4:00 PM
11:30 AM
6:00 PM
1:30 PM
8:00 PM
3:30 PM
10:00 PM
5:30 PM

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

AEST and IST on the World Map

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

AESTISTSydneyMelbourneBrisbaneCanberraMumbaiDelhiBangaloreKolkata
AEST Zone
→
IST Zone

Explore all world timezones interactively →

AEST – Australian Eastern Standard Time

UTC+10:00

Australian Eastern Standard Time (AEST) covers eastern Australia, 10 hours ahead of UTC.

Countries in AEST
Australia (NSW, VIC, QLD, TAS, ACT)Papua New Guinea
Major Cities in AEST
SydneyMelbourneBrisbaneCanberraHobartGold Coast
Key Facts about AEST
  • •Queensland does not observe daylight saving time, staying on AEST year-round.
  • •Sydney and Melbourne switch to AEDT (UTC+11:00) in summer.
  • •The Australian Securities Exchange (ASX) operates on AEST/AEDT.
  • •AEST is 15 hours ahead of EST during winter.
Daylight Saving:Yes – switches to AEDT
Learn more about AEST 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

About Mumbai

Wikipedia

Mumbai operates on India Standard Time (IST), UTC+5:30. As India's financial capital and home to BSE (Asia's oldest stock exchange), Mumbai timing is crucial for Asia markets.

Population:12.4 million
Metro:21.3 million
Business Hours:9:30 AM - 5:30 PM IST
Currency:INR (₹)
Stock Exchange:BSE (Bombay Stock Exchange), NSE
Key Landmarks
Gateway of IndiaChhatrapati Shivaji TerminusMarine DriveElephanta CavesHaji Ali Dargah
Did You Know?

The Mumbai local trains carry over 7.5 million passengers daily.

Learn more about IST timezone →

Understanding the -4h 30m Gap: AEST vs Mumbai

AEST runs on Australian Eastern Standard Time (AEST) at UTC+10:00. Mumbai runs on India Standard Time (IST) at UTC+05:30. That puts AEST 4 hours 30 minutes behind Mumbai — a difference of -4h 30m at the current offsets.

In practice, when it is 9:00 AM in AEST it is 4:30 AM in Mumbai. Midnight in AEST is 7:30 PM in Mumbai. Neither zone observes daylight saving time, so the offset between them stays constant all year.

AEST to Mumbai time conversion table

AEST (AEST)Mumbai (IST)Day
12:00 AM7:30 PMprevious day
6:00 AM1:30 AMsame day
7:00 AM2:30 AMsame day
8:00 AM3:30 AMsame day
9:00 AM4:30 AMsame day
12:00 PM7:30 AMsame day
3:00 PM10:30 AMsame day
5:00 PM12:30 PMsame day
6:00 PM1:30 PMsame day
9:00 PM4:30 PMsame day

Why people convert AEST to Mumbai time

  • Scheduling a call from AEST to Mumbai: a 10:00 AM start in AEST lands at 5:30 AM in Mumbai, so you can confirm the slot without doing the arithmetic yourself.
  • Finding shared working hours: both AEST and Mumbai are inside the 9-to-5 working day between 1:30 PM and 5:00 PM AEST time (9:00 AM–12:30 PM IST). That is roughly 3 hours 30 minutes of usable overlap.
  • Keeping family and friends in sync: knowing that 8:00 PM in AEST is 3:30 PM in Mumbai makes it easy to avoid calling at 3 AM.
  • Always state the zone abbreviation, not just the hour. "3:00 PM AEST" is unambiguous; "3 PM" across a -4h 30m gap is not.
  • Block 1:30 PM–5:00 PM AEST as the recurring meeting window if you work primarily from AEST and need Mumbai colleagues present.

About AEST (Australian Eastern Standard Time)

Australian Eastern Standard Time (AEST) is used in the eastern states of Australia including New South Wales, Victoria, Queensland, Tasmania, and the ACT. During summer (October to April), NSW, VIC, TAS, and ACT switch to Australian Eastern Daylight Time (AEDT, UTC+11:00), while Queensland remains on AEST year-round.

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 AEST and Mumbai

Both AEST and Mumbai sit inside the 9 AM – 5 PM working day between 1:30 PM–5:00 PM AEST, which is 9:00 AM–12:30 PM IST. That gives roughly 3 hours and 30 minutes of shared time — the safest window for a live call or meeting.

Business hours overlap

AEST and Mumbai overlap for about 3 hours during the working day — enough for meetings if you avoid the edges of the window.

AEST is 4 hours 30 minutes behind Mumbai (AEST UTC+10:00 → IST UTC+05:30). The shared working window is 1:30 PM–5:00 PM AEST. Remember to re-check around daylight-saving transitions.

🕐 Daylight Saving Time Info

AEST

❄ Currently in Standard Time

Standard: UTC+10:00 · DST: UTC+11:00

Clocks spring forward on Sat, Oct 3, 2026

Mumbai

Does not observe DST

Frequently Asked Questions

What is the time difference between AEST and Mumbai?

AEST (AEST, UTC+10:00) is 4 hours 30 minutes behind Mumbai (IST, UTC+05:30). The gap is currently -4h 30m.

How do I convert AEST time to Mumbai time?

Add -4h 30m to AEST local time. For example, 9:00 AM in AEST is 4:30 AM in Mumbai.

What time is it in Mumbai right now?

Mumbai 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 -4h 30m offset from AEST.

What is the best time to call Mumbai from AEST?

Call between 1:30 PM and 5:00 PM AEST — that maps to 9:00 AM–12:30 PM IST and keeps both parties inside the working day.

Which is behind, AEST or Mumbai?

AEST is 4 hours 30 minutes behind Mumbai. When it is 12:00 PM in AEST it is 7:30 AM in Mumbai.

Do AEST and Mumbai use different time zones?

AEST uses AEST at UTC+10:00, while Mumbai (India) uses IST at UTC+05:30. The IANA identifiers are Australia/Sydney and Asia/Kolkata.

Does daylight saving time affect the AEST–Mumbai difference?

Neither zone observes daylight saving time, so the -4h 30m offset between AEST and Mumbai is fixed all year.

Which other cities share AEST's time zone?

AEST also covers Sydney, Melbourne, Brisbane, Canberra, Hobart, Gold Coast.

Which countries use AEST, AEST's zone?

AEST is used in Australia (NSW, VIC, QLD, TAS, ACT), Papua New Guinea.

Is there a day difference between AEST and Mumbai?

Not normally. The -4h 30m gap only pushes the date over the previous day.

What is the time difference between AEST and Mumbai?

Mumbai is -4h 30m from AEST.

What timezone is AEST in?

AEST operates on its local timezone.

What timezone is Mumbai in?

Mumbai operates on India Standard Time (IST), UTC+5:30. As India's financial capital and home to BSE (Asia's oldest stock exchange), Mumbai timing is crucial for Asia markets.

What are the business hours in Mumbai?

Standard business hours in Mumbai are 9:30 AM - 5:30 PM IST.

Which countries use AEST (Australian Eastern Standard Time)?

AEST is used in Australia (NSW, VIC, QLD, TAS, ACT), Papua New Guinea.

Does AEST observe daylight saving time?

Yes, AEST switches to AEDT during summer months.

What are some interesting facts about AEST?

Queensland does not observe daylight saving time, staying on AEST year-round. Sydney and Melbourne switch to AEDT (UTC+11:00) in summer.

Which cities are in the IST timezone?

Major cities in the IST timezone include Mumbai, Delhi, Bangalore, Kolkata, Chennai, Hyderabad, Pune, Ahmedabad.

What is the UTC offset for IST?

India Standard Time (IST) is at UTC+05:30.

What should I know about the IST timezone?

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.

When is it midnight in AEST, what time is it in Mumbai?

When it is 12:00 AM (midnight) in AEST (AEST), it is -4h 30m later in Mumbai (IST).