Time Difference Between Mumbai and Adelaide

The time difference between Mumbai and Adelaide is 4 hours. When it is 12:00 noon in Mumbai, it is 16:00 in Adelaide. Mumbai uses the Asia/Kolkata time zone (UTC+5:30), while Adelaide uses Australia/Adelaide (UTC+9:30).

Adelaide is 4 hours ahead of Mumbai — 4 hours
Mumbai, India
05:08:51
Monday, May 11, 2026
UTC+5:30 · IST
Adelaide, Australia
09:08:51
Monday, May 11, 2026
UTC+9:30 · ACST

Time Zone Details: Mumbai vs Adelaide

Detail Mumbai Adelaide
Time Zone IDAsia/KolkataAustralia/Adelaide
UTC OffsetUTC+5:30UTC+9:30
AbbreviationISTACST
DST ActiveNoNo
CountryIndiaAustralia
RegionAsiaOceania

Best Time to Schedule a Call

There are 4 overlapping business hours between Mumbai and Adelaide (assuming 9:00–17:00 in each city). The ideal window for calls and meetings is:

09:00–13:00 in Mumbai  =  13:00–17:00 in Adelaide

Hour-by-Hour Time Conversion

Use this table to quickly convert any hour from Mumbai time to Adelaide time. Rows highlighted in green indicate overlapping business hours in both cities.

Mumbai Adelaide
00:00 04:00 Night
01:00 05:00 Night
02:00 06:00 Night
03:00 07:00 Night
04:00 08:00 Night
05:00 09:00 Night
06:00 10:00
07:00 11:00
08:00 12:00
09:00 13:00 Overlap
10:00 14:00 Overlap
11:00 15:00 Overlap
12:00 16:00 Overlap
13:00 17:00
14:00 18:00
15:00 19:00
16:00 20:00
17:00 21:00
18:00 22:00
19:00 23:00
20:00 00:00 (+1 day)
21:00 01:00 (+1 day)
22:00 02:00 (+1 day) Night
23:00 03:00 (+1 day) Night

Daylight Saving Time (DST) Impact

Neither Mumbai nor Adelaide is currently observing daylight saving time. If either city observes DST, the time difference will change by 1 hour when DST begins or ends. Always double-check before scheduling across these time zones during March–April and October–November.

Practical Tips for Mumbai–Adelaide Scheduling

Compare Mumbai and Adelaide with Other Cities

From Mumbai

From Adelaide

Frequently Asked Questions

What is the time difference between Mumbai and Adelaide?

The time difference is 4 hours. Adelaide is 4 hours ahead of Mumbai.

Does the time difference change during the year?

It can. If either Mumbai or Adelaide observes daylight saving time, the gap will shift by 1 hour during the transition periods (typically March–April and October–November).

When is the best time to call from Mumbai to Adelaide?

The best window is between 09:00 and 13:00 Mumbai time, which corresponds to 13:00–17:00 in Adelaide. Both sides fall within normal business hours.

How do I convert Mumbai time to Adelaide time?

Add 4 hours to Mumbai time to get Adelaide time. Use the hour-by-hour table above for a quick reference.

Related Pages

For sunrise and sunset data, visit TheSunsetTimes.com. For detailed DST schedules, see DaylightSavingTime.info.