Clockjumper

Time difference

Kolkata to Melbourne Time Difference

Melbourne is 4 hours and 30 minutes ahead of Kolkata — when it's 12:00 PM in Kolkata, it's 4:30 PM in Melbourne. (Kolkata (Asia/Kolkata, IST); Melbourne (Australia/Melbourne, AEST).) Below: live local times, the best hours for a call, a full conversion table, and exact daylight-saving dates.

Quick answer

Melbourne is 4 hours and 30 minutes ahead of Kolkata. The best window for a call is 9 AM–12:30 PM in Kolkata, which is 1:30 PM–5 PM in Melbourne — an overlap of 3 hours and 30 minutes inside 9 AM–5 PM on both sides. Clocks change on October 4, 2026, which briefly shifts the gap between Kolkata and Melbourne — the converter on this page always reflects the correct offset for the date you pick.

  • When it's 9:00 AM in Kolkata, it's 1:30 PM in Melbourne.
  • When it's 9:00 AM in Melbourne, it's 4:30 AM in Kolkata.

Melbourne is currently 4 hours and 30 minutes ahead of Kolkata.

KolkataIST
2:08 AM
Monday, Aug 24
MelbourneAEST
6:38 AM
Monday, Aug 24

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Best times to meet

The 9 AM – 5 PM business windows in Kolkata and Melbourne overlap for 3 hours and 30 minutes. 9 AM12:30 PM in Kolkata is 1:30 PM5 PM in Melbourne. Aim somewhere in the middle of that window so neither side starts cold or finishes drained.

Quick conversion table

KolkataMelbourne
12 AM4:30 AM
1 AM5:30 AM
2 AM6:30 AM
3 AM7:30 AM
4 AM8:30 AM
5 AM9:30 AM
6 AM10:30 AM
7 AM11:30 AM
8 AM12:30 PM
9 AM1:30 PM
10 AM2:30 PM
11 AM3:30 PM
12 PM4:30 PM
1 PM5:30 PM
2 PM6:30 PM
3 PM7:30 PM
4 PM8:30 PM
5 PM9:30 PM
6 PM10:30 PM
7 PM11:30 PM
8 PM12:30 AM (next day)
9 PM1:30 AM (next day)
10 PM2:30 AM (next day)
11 PM3:30 AM (next day)

Daylight saving

On October 4, 2026, Melbourne shifts for daylight saving. After that, Melbourne will be 5 hours and 30 minutes ahead of Kolkata (currently 4 hours and 30 minutes ahead of Kolkata). The converter and the tables above always reflect the correct offset for the date you pick.

  • Kolkata does not observe daylight saving time.
  • Melbourne is not currently observing daylight saving time (standard time is in effect).

Frequently asked questions

Is Melbourne ahead of or behind Kolkata?
Melbourne is 4 hours and 30 minutes ahead of Kolkata.
How many hours ahead of Kolkata is Melbourne?
Melbourne is 4 hours and 30 minutes ahead of Kolkata.
What time is 9 AM in Kolkata in Melbourne?
9:00 AM in Kolkata is 1:30 PM in Melbourne.
What time is noon in Kolkata in Melbourne?
12:00 PM in Kolkata is 4:30 PM in Melbourne.
What time is 5 PM in Kolkata in Melbourne?
5:00 PM in Kolkata is 9:30 PM in Melbourne. Useful for end-of-day handoffs between the two offices.
What time is 3 PM in Kolkata in Melbourne?
3:00 PM in Kolkata is 7:30 PM in Melbourne.
Is Kolkata currently observing daylight saving time?
Kolkata does not observe daylight saving time — its UTC offset stays the same all year.
Is Melbourne currently observing daylight saving time?
Melbourne observes daylight saving time seasonally, but is not currently on DST (standard time is in effect).
Do Kolkata and Melbourne observe daylight saving?
On October 4, 2026, Melbourne shifts for daylight saving. After that, Melbourne will be 5 hours and 30 minutes ahead of Kolkata (currently 4 hours and 30 minutes ahead of Kolkata). The converter and the tables above always reflect the correct offset for the date you pick.
When is the best time to call Melbourne from Kolkata?
Aim for 9 AM–12:30 PM in Kolkata, which is 1:30 PM–5 PM in Melbourne.
When is the best time to call Kolkata from Melbourne?
Aim for 1:30 PM–5 PM in Melbourne, which is 9 AM–12:30 PM in Kolkata.
Kolkata (IST) to Melbourne (AEST) — how do I convert quickly?
Add 4 hours and 30 minutes to Kolkata local time to get Melbourne local time. Or use the converter at the top of this page — it stays accurate through daylight-saving changes automatically.