Time difference
Time difference between Colombo and Ottawa
Find the best time to schedule a call or meeting.
Ottawa is currently 9 hours 30 minutes behind Colombo.
Colombo • GMT+5:30
6:35 PM
Thursday, Jun 18
Ottawa • EDT
9:05 AM
Thursday, Jun 18
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Best times to meet
Standard 9 AM – 5 PM hours in Colombo and Ottawa do not overlap. The least-bad options are an early start in one city or a late evening call in the other — for example a 7–8 AM meeting in Colombo, or a 6–8 PM meeting in Ottawa.
Quick conversion table
| Colombo | Ottawa |
|---|---|
| 8 AM | 10:30 PM (prev day) |
| 12 PM | 2:30 AM |
| 3 PM | 5:30 AM |
| 5 PM | 7:30 AM |
| 9 PM | 11:30 AM |
Daylight saving
Heads up: the gap will widen to 10.5 hours around November 5, when one of the cities shifts for daylight saving. Double-check meeting times scheduled across that date.
Frequently asked questions
- How many hours ahead is Ottawa than Colombo?
- Ottawa is 9.5 hours behind Colombo.
- What time is 9 AM in Colombo in Ottawa?
- 9:00 AM in Colombo is 11:30 PM the previous day in Ottawa.
- Do Colombo and Ottawa observe daylight saving?
- Heads up: the gap will widen to 10.5 hours around November 5, when one of the cities shifts for daylight saving. Double-check meeting times scheduled across that date.
- When is the best time to call Ottawa from Colombo?
- Colombo and Ottawa business hours don't overlap. The closest options are early mornings in Colombo or late evenings, when one side stretches outside 9–5.