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Athnova Care

IST to AEST: India time vs Sydney time

India (IST, UTC+5:30) is 4 hours 30 minutes behind Sydney when Sydney is on AEST, and 5 hours 30 minutes behind it during daylight saving time (AEDT).

India and Sydney — Australian Eastern Time (AEST/AEDT).

Australian Eastern Time is used in Sydney, Melbourne and Canberra (Brisbane stays on AEST all year).

When the difference changes

India time to AEST, hour by hour

Each hour of the day in India and in Sydney
India (IST)Sydney (AEST)Sydney (AEDT)
12:00 midnight4:30 am5:30 am
1:00 am5:30 am6:30 am
2:00 am6:30 am7:30 am
3:00 am7:30 am8:30 am
4:00 am8:30 am9:30 am
5:00 am9:30 am10:30 am
6:00 am10:30 am11:30 am
7:00 am11:30 am12:30 pm
8:00 am12:30 pm1:30 pm
9:00 am1:30 pm2:30 pm
10:00 am2:30 pm3:30 pm
11:00 am3:30 pm4:30 pm
12:00 noon4:30 pm5:30 pm
1:00 pm5:30 pm6:30 pm
2:00 pm6:30 pm7:30 pm
3:00 pm7:30 pm8:30 pm
4:00 pm8:30 pm9:30 pm
5:00 pm9:30 pm10:30 pm
6:00 pm10:30 pm11:30 pm
7:00 pm11:30 pm12:30 am (the next day)
8:00 pm12:30 am (the next day)1:30 am (the next day)
9:00 pm1:30 am (the next day)2:30 am (the next day)
10:00 pm2:30 am (the next day)3:30 am (the next day)
11:00 pm3:30 am (the next day)4:30 am (the next day)

Quick conversions

Best time to call your parents in India from Sydney

Hours when an older parent is usually up (7:00 am–9:30 pm in India) and you are not at work (before 8:30 am or after 6:00 pm on weekdays):

Put it in your calendar as a repeating call. Plan it for your own hours with the call-time planner →

Knowing they are fine when you cannot call

With Athnova Care, your parent gets one WhatsApp message a day in their language. A check-in at 9:00 am in India reaches you at 1:30 pm AEST or 2:30 pm AEDT — so on most days you know they have taken their medicines before your day starts or ends. If they do not reply, they get a reminder and then a phone call, and you are alerted. Caring for parents in India from Sydney →

Questions families ask

What is the time difference between India and Sydney?

India (IST, UTC+5:30) is 4 hours 30 minutes behind Sydney when Sydney is on AEST, and 5 hours 30 minutes behind it during daylight saving time (AEDT).

Is IST behind AEST?

Yes. IST is 4 hours 30 minutes behind Sydney when Sydney is on AEST, and 5 hours 30 minutes behind it during daylight saving time (AEDT).

What time is it in India when it is 9 am in Sydney?

4:30 am on AEST, and 3:30 am on AEDT.

Does India have daylight saving time?

No. India keeps IST, UTC+5:30, all year, so the difference with Sydney changes only when Sydney changes its clocks.

What is the best time to call my parents in India from Sydney?

On weekdays, 1:30 pm–6:00 pm in India = 6:00 pm–10:30 pm in Sydney (on AEST; on AEDT it is 12:30 pm–5:00 pm in India = 6:00 pm–10:30 pm in Sydney). Most older parents are easiest to reach after breakfast and before their evening TV.

Know every day that your parents are okay

One WhatsApp message a day in their language. A phone call if they go quiet. An alert to you if something is wrong.

Start your 14-day free trial Try a check-in on WhatsApp

No card needed · $12 a month for the whole family after the trial, or the free plan for one parent · cancel any time