This AEST to IST converter turns any time in Australian Eastern Standard Time (AEST) into India Standard Time (IST), using your device clock so daylight saving is applied automatically. IST is 5 hours 30 minutes behind AEST when both zones are on standard time, and 4 hours 30 minutes behind during the summer months when clocks have shifted. AEST is UTC+10 (AEDT: UTC+11); IST is UTC+5:30.
AEST covers Sydney, Melbourne, Canberra; IST covers Mumbai, Delhi, Bengaluru. Because only AEST observes daylight saving time, the difference is not constant through the year. The tables below show both cases, and the converter at the top always uses the rule in force on the date you pick.
AEST and IST UTC offsets
AEST
UTC+10
Australian Eastern Standard Time
AEDT UTC+11 from April 5 to October 4, 2026
IST
UTC+5:30
India Standard Time
No daylight saving time
AEST to IST conversion table (standard time)
| AEST | IST |
|---|---|
| 12 am | 6:30 pmprevious day |
| 3 am | 9:30 pmprevious day |
| 6 am | 12:30 am |
| 8 am | 2:30 am |
| 9 am | 3:30 am |
| 10 am | 4:30 am |
| 11 am | 5:30 am |
| 12 pm | 6:30 am |
| 1 pm | 7:30 am |
| 2 pm | 8:30 am |
| 3 pm | 9:30 am |
| 4 pm | 10:30 am |
| 5 pm | 11:30 am |
| 6 pm | 12:30 pm |
| 8 pm | 2:30 pm |
| 10 pm | 4:30 pm |
AEST to IST during daylight saving
Between the dates listed above, the difference is 4 hours 30 minutes instead of 5 hours 30 minutes.
| AEST/AEDT | IST |
|---|---|
| 12 am | 7:30 pmprevious day |
| 3 am | 10:30 pmprevious day |
| 6 am | 1:30 am |
| 8 am | 3:30 am |
| 9 am | 4:30 am |
| 10 am | 5:30 am |
| 11 am | 6:30 am |
| 12 pm | 7:30 am |
| 1 pm | 8:30 am |
| 2 pm | 9:30 am |
| 3 pm | 10:30 am |
| 4 pm | 11:30 am |
| 5 pm | 12:30 pm |
| 6 pm | 1:30 pm |
| 8 pm | 3:30 pm |
| 10 pm | 5:30 pm |
Frequently asked questions
What is the time difference between AEST and IST?
IST is 5 hours 30 minutes behind AEST on standard time. During daylight saving the gap changes to 4 hours 30 minutes. That comes from the UTC offsets: AEST is UTC+10 and IST is UTC+5:30. For example, 9 am AEST = 3:30 am IST, and in summer 9 am AEST = 4:30 am IST.
Is IST ahead of or behind AEST?
IST is 5 hours 30 minutes behind AEST, so when it is noon in AEST it is 6:30 am in IST. Ahead means the clock there already shows a later time; a call at 5 pm AEST lands at 11:30 am IST.
Does AEST or IST observe daylight saving time in 2026?
AEST switches to AEDT (UTC+11) on April 5 and back on October 4 in 2026. IST keeps UTC+5:30 all year. Between those dates the difference in the table above shifts by an hour, which is the usual cause of missed calls in spring and autumn.
What is the best time for a meeting between AEST and IST?
Standard office hours (9 am to 5 pm) overlap from 2.5 pm to 5 pm AEST, which is 9 am to 11.5 am IST. Pick a slot inside that window and both sides stay within a normal working day. Check the daylight saving dates above, because the window moves by an hour when only one side has changed clocks.
Which cities use AEST and IST?
AEST (Australian Eastern Standard Time) is used in Sydney, Melbourne, Canberra, Brisbane (no DST). IST (India Standard Time) is used in Mumbai, Delhi, Bengaluru, Kolkata. Some cities inside a zone skip daylight saving, noted in parentheses, so their offset matches only part of the year.