Offset
The time difference between Singapore and Ottawa is 12 hours.
Singapore (SGT) is ahead of Ottawa (EDT).
SGT: UTC+8
EDT: UTC-4
Ottawa is currently observing daylight saving time; Singapore is not.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Singapore and Ottawa don't overlap on the same weekday. Ottawa is 12 hours behind Singapore.
With some flexibility, there’s a workable window outside standard hours:
- 7 PM–8 PM in Singapore (7 AM–8 AM in Ottawa) — suggest 7:00 PM Singapore (7:00 AM Ottawa).
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.
Singapore
- New Year's DayThu, Jan 1
- Chinese New YearTue, Feb 17
- Chinese New YearWed, Feb 18
- Hari Raya PuasaFri, Mar 20
- Good FridayFri, Apr 3
- Labour DayFri, May 1
- Hari Raya Haji (Tentative Date)Wed, May 27
- National DayMon, Aug 10
- DeepavaliMon, Nov 9
- Christmas DayFri, Dec 25
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.
| Singapore | Ottawa | Day |
|---|---|---|
| 12:00 am | 12:00 pm | -1 day |
| 1:00 am | 1:00 pm | -1 day |
| 2:00 am | 2:00 pm | -1 day |
| 3:00 am | 3:00 pm | -1 day |
| 4:00 am | 4:00 pm | -1 day |
| 5:00 am | 5:00 pm | -1 day |
| 6:00 am | 6:00 pm | -1 day |
| 7:00 am | 7:00 pm | -1 day |
| 8:00 am | 8:00 pm | -1 day |
| 9:00 am | 9:00 pm | -1 day |
| 10:00 am | 10:00 pm | -1 day |
| 11:00 am | 11:00 pm | -1 day |
| 12:00 pm | 12:00 am | Same day |
| 1:00 pm | 1:00 am | Same day |
| 2:00 pm | 2:00 am | Same day |
| 3:00 pm | 3:00 am | Same day |
| 4:00 pm | 4:00 am | Same day |
| 5:00 pm | 5:00 am | Same day |
| 6:00 pm | 6:00 am | Same day |
| 7:00 pm | 7:00 am | Same day |
| 8:00 pm | 8:00 am | Same day |
| 9:00 pm | 9:00 am | Same day |
| 10:00 pm | 10:00 am | Same day |
| 11:00 pm | 11:00 am | Same day |
Daylight saving time
Ottawa observes daylight saving time; Singapore 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
- 6:59 AM
- Sunset
- 7:10 PM
- Day length
- 12h 12m
- Sunrise
- 5:16 AM
- Sunset
- 8:49 PM
- Day length
- 15h 33m
Daylight overlap: 1h 50m — 6:59 AM–8:49 AM in Singapore (6:59 PM–8:49 PM in Ottawa). Both locations are in daylight during this window.
Cities in these zones
Other cities in Eastern Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Singapore Time
- SIN
Airports in Eastern Time
- YTZ
- YYZ
- YHU
- YMX
- YUL
- YND
- YOW
- YRO
Related conversions
Common conversions
- What is 9:00 am Singapore in Ottawa?
- 9:00 am Singapore is 9:00 pm Ottawa, the previous day.
- What is 12:00 pm Singapore in Ottawa?
- 12:00 pm Singapore is 12:00 am Ottawa.
- What is 12:30 pm Singapore in Ottawa?
- 12:30 pm Singapore is 12:30 am Ottawa.
- What is 2:00 pm Singapore in Ottawa?
- 2:00 pm Singapore is 2:00 am Ottawa.
- What is 5:00 pm Singapore in Ottawa?
- 5:00 pm Singapore is 5:00 am Ottawa.
- What is 11:30 pm Singapore in Ottawa?
- 11:30 pm Singapore is 11:30 am Ottawa.