Time difference between Greenwich and Ottawa
Compare the current local time in Greenwich and Ottawa, see when your working hours overlap, and convert any specific hour between the two timezones.
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Convert a specific time
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Working-hours overlap
When Greenwich's 9:00–17:00 business hours overlap with Ottawa's.
Greenwich working hours
Ottawa working hours
Overlap (both working)
🇺🇸 Greenwich
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🇨🇦 Ottawa
Scheduling across Greenwich and Ottawa
Working across Greenwich and Ottawa is very easy. Their standard business hours overlap for around 8 hours every day, from 09:00 to 17:00 in Greenwich (09:00 to 17:00 in Ottawa). Meetings can sit comfortably inside the regular working day on both sides.
Quick reference
| 🇺🇸 Greenwich | 🇨🇦 Ottawa | In Ottawa it's… |
|---|---|---|
| 06:00 — Early morning | — | — |
| 09:00 — Start of work | — | — |
| 12:00 — Lunchtime | — | — |
| 15:00 — Mid-afternoon | — | — |
| 17:00 — End of work | — | — |
| 20:00 — Evening | — | — |
Daylight saving status
🇺🇸 Greenwich
Currently in EDT (daylight saving)
Clocks go back to EST
on Sunday 1 November 2026
🇨🇦 Ottawa
Currently in EDT (daylight saving)
Clocks go back to EST
on Sunday 1 November 2026