India Standard Time (ist) is used in India. The IANA timezone identifier is Asia/Kolkata.

IST to SYDNEY Time Converter

Q: Where is sydney used?

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

India Standard Time → SYDNEY (Sydney)

IST = UTC+5:30SYDNEY = UTC+11

⚠️ 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

BASE

09:00

Work Clients Team +

00:0006:0012:0018:0024:00

← Drag to change time →

Sydney

Australia · +5.5h

14:30

London

United Kingdom · -4.5h

04:30

New York

USA · -9.5h

23:30-1 day

Tokyo

Japan · +3.5h

12:30

Dubai

United Arab Emirates · -1.5h

07:30

IST (Mumbai) vs Sydney — time difference

IST (Mumbai) is 6 hours 30 minutes behind Sydney. When IST (Mumbai) clocks hit noon, Sydney reads 17:00.

IST (Mumbai) runs on Asia/Kolkata; Sydney runs on Australia/Sydney. Together they are 5.5 hours 30 minutes apart.

Shared working hours

Every working day, IST (Mumbai) and Sydney are both in business hours for 2.5 hours simultaneously.

00:0006:0012:0018:0024:00

IST (Mumbai)

Sydney

Overlap (2.5h)

Best times to schedule a meeting

There is a 2.5-hour daily window where both locations are in business hours.

09:00 Mumbai / 14:00 Sydney✓ Both working

10:00 Mumbai / 15:00 Sydney✓ Both working

11:00 Mumbai / 16:00 Sydney✓ Both working

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

Holiday calendar for both locations

IST (Mumbai)

No upcoming public holidays this year.

Sydney3 holidays

Nov 3Melbourne CupSOON

Dec 25Christmas Day

Dec 28St. Stephen's Day

Working across IST (Mumbai) and Sydney

The 5.5-hour gap between IST (Mumbai) (India) and Sydney (Australia) requires some planning — but a 2.5-hour daily overlap means both teams can connect in real time without unusual scheduling.

💡 Best practice for cross-timezone meetings

✅

If you are in IST (Mumbai), aim for 09:00–10:00, which corresponds to 14:00–15:00 in Sydney — both teams are within working hours.

✅

If you are in IST (Mumbai), aim for 10:00–11:00, which corresponds to 15:00–16:00 in Sydney — both teams are within working hours.

✅

If you are in IST (Mumbai), aim for 11:00–12:00, which corresponds to 16:00–17:00 in Sydney — both teams are within working hours.

Avoid scheduling mistakes — especially around daylight saving changes. Use the ClockinSync Chrome Extension to instantly verify and compare both time zones directly in your browser, without manual calculations.

Add to your browser — Free →

Need a specific time? Use the slider or type directly into the input bar — it understands "3pm", "15:30", and location-specific formats like "9am IST (Mumbai)".

IST (Mumbai) ↔ SYDNEY (Sydney)

3h of business hours overlap daily (09:00–17:00)

IST (Mumbai)

SYDNEY (Sydney)

00:00

05:30

01:00

06:30

02:00

07:30

03:00

08:30