Offset
The time difference between Ottawa and Mumbai is 9.5 hours.
Ottawa (EDT) is behind Mumbai (IST).
EDT: UTC-4
IST: UTC+5:30
Ottawa is currently observing daylight saving time; Mumbai is not.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Ottawa and Mumbai don't overlap on the same weekday. Mumbai is 10 hours ahead of Ottawa.
With some flexibility, there’s a workable window outside standard hours:
- 7 AM–11 AM in Ottawa (4 PM–8 PM in Mumbai) — suggest 9:00 AM Ottawa (6:30 PM Mumbai).
This means an early start or late finish for one side, but it’s a reasonable slot for a one-off meeting.
This window may shift by an hour during daylight saving time.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
Canada
- New Year's DayThu, Jan 1
- Good FridayFri, Apr 3
- Victoria DayMon, May 18
- Canada DayWed, Jul 1
- Labour DayMon, Sep 7
- National Day for Truth and ReconciliationWed, Sep 30
- ThanksgivingMon, Oct 12
- Christmas DayFri, Dec 25
About these zones
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Ottawa | Mumbai | Day |
|---|---|---|
| 12:00 am | 9:30 am | Same day |
| 1:00 am | 10:30 am | Same day |
| 2:00 am | 11:30 am | Same day |
| 3:00 am | 12:30 pm | Same day |
| 4:00 am | 1:30 pm | Same day |
| 5:00 am | 2:30 pm | Same day |
| 6:00 am | 3:30 pm | Same day |
| 7:00 am | 4:30 pm | Same day |
| 8:00 am | 5:30 pm | Same day |
| 9:00 am | 6:30 pm | Same day |
| 10:00 am | 7:30 pm | Same day |
| 11:00 am | 8:30 pm | Same day |
| 12:00 pm | 9:30 pm | Same day |
| 1:00 pm | 10:30 pm | Same day |
| 2:00 pm | 11:30 pm | Same day |
| 3:00 pm | 12:30 am | +1 day |
| 4:00 pm | 1:30 am | +1 day |
| 5:00 pm | 2:30 am | +1 day |
| 6:00 pm | 3:30 am | +1 day |
| 7:00 pm | 4:30 am | +1 day |
| 8:00 pm | 5:30 am | +1 day |
| 9:00 pm | 6:30 am | +1 day |
| 10:00 pm | 7:30 am | +1 day |
| 11:00 pm | 8:30 am | +1 day |
Daylight saving time
Ottawa observes daylight saving time; Mumbai does not. The offset between the two zones changes when Ottawa transitions: on Sunday, November 1, 2026, clocks fall back from EDT to EST.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 5:40 AM
- Sunset
- 8:40 PM
- Day length
- 15h 1m
- Sunrise
- 6:13 AM
- Sunset
- 7:18 PM
- Day length
- 13h 5m
Daylight overlap: 4h 8m — 5:40 AM–9:48 AM in Ottawa (3:10 PM–7:18 PM in Mumbai). Both locations are in daylight during this window.
Cities in these zones
Other cities in Eastern Time
Other cities in India Standard Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Eastern Time
- YTZ
- YYZ
- YHU
- YMX
- YUL
- YND
- YOW
- YRO
Airports in India Standard Time
- BOM
- NMI
- DEL
- BLR
- HYD
- AMD
- MAA
- CCU
- STV
- PNQ
Related conversions
Common conversions
- What is 9:00 am Ottawa in Mumbai?
- 9:00 am Ottawa is 6:30 pm Mumbai.
- What is 12:00 pm Ottawa in Mumbai?
- 12:00 pm Ottawa is 9:30 pm Mumbai.
- What is 12:30 pm Ottawa in Mumbai?
- 12:30 pm Ottawa is 10:00 pm Mumbai.
- What is 2:00 pm Ottawa in Mumbai?
- 2:00 pm Ottawa is 11:30 pm Mumbai.
- What is 5:00 pm Ottawa in Mumbai?
- 5:00 pm Ottawa is 2:30 am Mumbai, the next day.
- What is 11:30 pm Ottawa in Mumbai?
- 11:30 pm Ottawa is 9:00 am Mumbai, the next day.