Time Difference Between Mumbai and Osaka

The time difference between Mumbai and Osaka is 3 hours and 30 minutes. When it is 12:00 noon in Mumbai, it is 15:30 in Osaka. Mumbai uses the Asia/Kolkata time zone (UTC+5:30), while Osaka uses Asia/Tokyo (UTC+9).

Osaka is 3 hours and 30 minutes ahead of Mumbai — 3 hours and 30 minutes
Mumbai, India
02:26:26
Friday, March 27, 2026
UTC+5:30 · IST
Osaka, Japan
05:56:26
Friday, March 27, 2026
UTC+9 · JST

Time Zone Details: Mumbai vs Osaka

Detail Mumbai Osaka
Time Zone IDAsia/KolkataAsia/Tokyo
UTC OffsetUTC+5:30UTC+9
AbbreviationISTJST
DST ActiveNoNo
CountryIndiaJapan
RegionAsiaAsia

Best Time to Schedule a Call

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

09:00–13:30 in Mumbai  =  12:30–17:00 in Osaka

Hour-by-Hour Time Conversion

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

Mumbai Osaka
00:00 03:30 Night
01:00 04:30 Night
02:00 05:30 Night
03:00 06:30 Night
04:00 07:30 Night
05:00 08:30 Night
06:00 09:30
07:00 10:30
08:00 11:30
09:00 12:30 Overlap
10:00 13:30 Overlap
11:00 14:30 Overlap
12:00 15:30 Overlap
13:00 16:30 Overlap
14:00 17:30
15:00 18:30
16:00 19:30
17:00 20:30
18:00 21:30
19:00 22:30
20:00 23:30
21:00 00:30 (+1 day)
22:00 01:30 (+1 day) Night
23:00 02:30 (+1 day) Night

Daylight Saving Time (DST) Impact

Neither Mumbai nor Osaka 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–Osaka Scheduling

Compare Mumbai and Osaka with Other Cities

From Mumbai

From Osaka

Frequently Asked Questions

What is the time difference between Mumbai and Osaka?

The time difference is 3 hours and 30 minutes. Osaka is 3 hours and 30 minutes ahead of Mumbai.

Does the time difference change during the year?

It can. If either Mumbai or Osaka 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 Osaka?

The best window is between 09:00 and 13:30 Mumbai time, which corresponds to 12:30–17:00 in Osaka. Both sides fall within normal business hours.

How do I convert Mumbai time to Osaka time?

Add 3 hours and 30 minutes to Mumbai time to get Osaka 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.