Time Difference: Mumbai vs Oslo
Oslo is 3.5 hours behind Mumbai.
Quick Reference
- Mumbai
- IST (GMT+5:30)
No Daylight Saving Time
- Oslo
- CEST (GMT+2)
CET starts on Oct 25, 2026
Frequently Asked Questions
- What is the time difference between Mumbai and Oslo?
- Oslo is 3.5 hours behind Mumbai.
- When is the best time to call from Mumbai to Oslo?
- The best time to call is during overlapping business hours (9 AM – 5 PM) in both cities. Use the interactive converter on this page to visually compare hours side by side.
- Does the time difference change with daylight saving time?
- The time difference may change when either city enters or exits daylight saving time. Mumbai uses IST and Oslo uses CEST.