India Standard Time
IST means UTC+05:30 throughout the year.
Other meanings: Israel Standard Time · Irish Standard Time.
TIME ZONE CONVERTER
IST to Sydney
Time Converter
Convert India Standard Time to Sydney, Australia. Compare dates, seasonal differences and meeting hours.
IST is 4h 30m or 5h 30m behind Sydney in 2026, depending on the date.
9 AM IST = 2:30 PM Sydney
Selected date: November 4, 2026. Fixed abbreviations retain their stated UTC offsets.
THE QUICK REFERENCE
CSVIST to Sydney conversion table
November 4, 2026 · Date changes are marked.
View the full 24-hour table
| IST | Sydney |
|---|---|
| 12:00 AM | 5:30 AM |
| 1:00 AM | 6:30 AM |
| 2:00 AM | 7:30 AM |
| 3:00 AM | 8:30 AM |
| 4:00 AM | 9:30 AM |
| 5:00 AM | 10:30 AM |
| 6:00 AM | 11:30 AM |
| 7:00 AM | 12:30 PM |
| 8:00 AM | 1:30 PM |
| 9:00 AM | 2:30 PM |
| 10:00 AM | 3:30 PM |
| 11:00 AM | 4:30 PM |
| IST | Sydney |
|---|---|
| 12:00 PM | 5:30 PM |
| 1:00 PM | 6:30 PM |
| 2:00 PM | 7:30 PM |
| 3:00 PM | 8:30 PM |
| 4:00 PM | 9:30 PM |
| 5:00 PM | 10:30 PM |
| 6:00 PM | 11:30 PM |
| 7:00 PM | 12:30 AM +1 day |
| 8:00 PM | 1:30 AM +1 day |
| 9:00 PM | 2:30 AM +1 day |
| 10:00 PM | 3:30 AM +1 day |
| 11:00 PM | 4:30 AM +1 day |
Starting with the Sydney working day
These examples start on 2026-11-04 in Sydney.
09:00 Sydney03:30 →IST · 2026-11-04
17:00 Sydney11:30 →IST · 2026-11-04
Which time-zone meaning are we using?
ONE CLOCK TIME. THE WHOLE YEAR.
Year CSV09:00 IST to Sydney throughout 2026
Keeping 09:00 on the IST clock produces 2 different destination clock/date answers in 2026. The ranges below use IST calendar dates, including transition days.
| Dates in IST · 2026 | Sydney answer | Source → destination offsets | Explore |
|---|---|---|---|
| Jan 1 – Apr 494 dates | 14:30Same date | UTC+05:30 → UTC+11:00 | |
| Apr 5 – Oct 3182 dates | 13:30Same date | UTC+05:30 → UTC+10:00 | |
| Oct 4 – Dec 3189 dates | 14:30Same date | UTC+05:30 → UTC+11:00 |
Every calendar date is included, not just workdays. Date ranges include both endpoints. Based on IANA 2026e; future rules may change.
DON’T LOSE A DAY
When does IST time become a different date in Sydney?
Your complete source day: 2026-11-04. Each range shows which destination date to use.
IST · 2026-11-0400:00–18:30UTC+05:30
Sydney · 2026-11-0405:30–24:00UTC+11:00 Same date
IST · 2026-11-0418:30–24:00UTC+05:30
Sydney · 2026-11-0500:00–05:30UTC+11:00 Next day
Range starts are included; ends are excluded. 24:00 means midnight at the end of that date. Repeated hours appear separately with their UTC offsets. The strip is proportional to elapsed time.
THE BIGGER PICTURE
2026A year of time differences.
How Sydney compares with IST throughout 2026.
JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC
+5h 30m
+4h 30m
+5h 30m
Sydney changes its UTC offset in 2026. IST is a fixed offset.
See exact change periods
| From (UTC, inclusive) | Until (UTC, exclusive) | Sydney vs IST |
|---|---|---|
| 1 Jan 2026, 00:00 UTC | 4 Apr 2026, 16:00 UTC | 5h 30m ahead |
| 4 Apr 2026, 16:00 UTC | 3 Oct 2026, 16:00 UTC | 4h 30m ahead |
| 3 Oct 2026, 16:00 UTC | 1 Jan 2027, 00:00 UTC | 5h 30m ahead |
CLOCK CHANGES
What changes at the next clock adjustment?
Exact periods outside the most common difference in 2026
The most frequent difference has Sydney 5h 30m ahead relative to IST. Exceptions:
| From (UTC, inclusive) | Until (UTC, exclusive) | Compared with IST |
|---|---|---|
| 4 Apr 2026, 16:00 UTC | 3 Oct 2026, 16:00 UTC | 4h 30m ahead |
PLAN BEYOND A SINGLE DAY
Daily CSVIST–Sydney working hours through 2026
Every date calculated with your working windows. 261 selected IST workdays; public holidays are not applied.
Least shared time2h 30m
Most common2h 30m
Most shared time3h 30m
Days without a 60-min slot0 / 261
A start time that survives the whole year.
Start a 60-minute meeting in IST 09:00–10:30.
These starts fit both working windows on every selected IST workday in 2026, using a 15-minute start grid. The end of each range is the last valid start.
IST: 09:00–17:00, Mon, Tue, Wed, Thu, Fri. Sydney: 09:00–17:00, Mon, Tue, Wed, Thu, Fri.
Calculation details and repeated hours
Overnight shifts belong to their start weekday. Host workday means the source calendar date. Repeated local times use the first occurrence.
THE DETAILS THAT MATTER
IST to Sydney: useful answers
Why is the IST to Sydney difference sometimes 4h 30m and sometimes 5h 30m?
IST is 4h 30m or 5h 30m behind Sydney in 2026, depending on the date. Sydney changes its UTC offset in 2026. IST is a fixed offset.
Does the IST–Sydney time difference change in 2026?
The published rules produce 3 periods with 2 different offsets in 2026. See the annual chart for the exact boundaries of each period.
Does this conversion change the calendar date?
09:00 in IST on 2026-11-04 is 14:30 in Sydney on 2026-11-04. This selected time stays on the same date in both places. Other times can cross midnight.
Can IST and Sydney meet during working hours?
Your selected working windows share 2h 30m on 2026-11-04. The planner above checks the whole meeting duration and shows suitable start times. Edit the windows to match your team.
Related time-zone meanings and conversions
Choose the question you need answered
Calculated with IANA 2026e. Working hours are your preferences; public holidays and calendar availability are not included. Our methodology