IST to SYDNEY Time Converter

India Standard Time → SYDNEY (Sydney)

IST = UTC+5:30SYDNEY = UTC+10

⚠️ IST is ambiguous — on this page it means India Standard Time. It also refers to:

Ireland Standard Time (Dublin) → SYDNEY ↗Israel Standard Time (Jerusalem) → SYDNEY ↗

ClockinSync

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IST (Mumbai)BASE

09:00

00:0006:0012:0018:0024:00

Sydney

Australia · +4.5h🔔 Public Holiday in 6d —  May Day

13:30

London

United Kingdom · -4.5h

04:30

New York

USA · -9.5h

-1 day23:30

Tokyo

Japan · +3.5h

12:30

Dubai

United Arab Emirates · -1.5h

07:30

IST (Mumbai) vs Sydney — time difference

IST (Mumbai) is 5 hours 30 minutes behind Sydney. 12:00 PM in IST (Mumbai) = 16:00 in Sydney.

IST (Mumbai) observes Asia/Kolkata and Sydney observes Australia/Sydney — a 4.5 hours 30 minutes gap between them.

Shared working hours

Standard 9–5 schedules overlap for 3.5 hours between IST (Mumbai) and Sydney each day.

00:0006:0012:0018:0024:00

IST (Mumbai)

Sydney

Overlap (3.5h)

When to schedule across time zones

IST (Mumbai) and Sydney share 3.5 hours of business hours overlap daily. Showing the 3 most balanced slots — see the time table below for the full window.

09:00 Mumbai / 13:00 Sydney✓ Both working

10:00 Mumbai / 14:00 Sydney✓ Both working

11:00 Mumbai / 15:00 Sydney✓ Both working

Working hours defined as 09:00–17:00 local time for each location.

Upcoming public holidays

IST (Mumbai)

No upcoming public holidays this year.

Sydney12 holidays

May 4May DaySOON

May 4Labour DaySOON

Jun 1Reconciliation Day

Jun 1Western Australia Day

Jun 8King's Birthday

Bridging the gap: IST (Mumbai) and Sydney

The 4.5-hour gap between IST (Mumbai) (India) and Sydney (Australia) requires some planning — but a 3.5-hour daily overlap means both teams can connect in real time without unusual scheduling.

💡 Practical scheduling guidelines

✅

09:00–10:00 in IST (Mumbai) = 13:00–14:00 in Sydney. Both sides are in standard business hours during this window.

✅

10:00–11:00 in IST (Mumbai) = 14:00–15:00 in Sydney. Both sides are in standard business hours during this window.

✅

11:00–12:00 in IST (Mumbai) = 15:00–16:00 in Sydney. Both sides are in standard business hours during this window.

Time differences can shift unexpectedly when either location observes daylight saving.

Drag the slider at the top to convert any IST (Mumbai) time instantly. You can also type natural language like "3pm", "15:00", or a location name to get an immediate answer.

IST (Mumbai) ↔ SYDNEY (Sydney)

4h of business hours overlap daily (09:00–17:00)

IST (Mumbai)

SYDNEY (Sydney)

00:00

04:30

01:00

05:30

02:00

06:30

03:00

07:30

04:00

08:30

05:00

09:30Working

06:00

10:30Working

07:00

11:30Working

08:00

12:30Working

09:00Working

13:30Working

10:00Working

14:30Working

11:00Working

15:30Working

12:00Working

16:30Working

13:00Working

17:30off

14:00Working

18:30off

15:00Working

19:30off

16:00Working

20:30off

17:00

21:30

18:00

22:30

19:00

23:30

20:00

00:30+1d

21:00

01:30+1d

22:00

02:30+1d

23:00

03:30+1d

Working hours: 09:00–17:00 local. Green = both working. Purple = one side only.

Frequently Asked Questions

What is the difference between ist and sydney?

India Standard Time (ist) is UTC+5:30 and SYDNEY (Sydney) (sydney) is UTC+10. The difference between them is 4.5 hours.

Where is ist used?

India Standard Time (ist) is used in India and surrounding regions. The IANA timezone identifier is Asia/Kolkata. Note: ist is ambiguous and may refer to other timezones.

Where is sydney used?

SYDNEY (Sydney) (sydney) is used in Australia and surrounding regions. The IANA timezone identifier is Australia/Sydney.

How do I convert ist to sydney?

Use the interactive converter above. Drag the time slider to any ist time and the sydney equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.

Popular IST conversions

IST → London IST → New York IST → Tokyo IST → Dubai IST → Sydney IST → Paris IST → Berlin IST → Singapore IST → Los Angeles IST → Toronto

Popular SYDNEY conversions

London → SYDNEY New York → SYDNEY Tokyo → SYDNEY Dubai → SYDNEY Paris → SYDNEY Berlin → SYDNEY Singapore → SYDNEY Los Angeles → SYDNEY Toronto → SYDNEY Mumbai → SYDNEY