Time Difference Between Ottawa and Cairo

The time difference between Ottawa and Cairo is 7 hours. When it is 12:00 noon in Ottawa, it is 19:00 in Cairo. Ottawa uses the America/Toronto time zone (UTC-4), while Cairo uses Africa/Cairo (UTC+3).

Cairo is 7 hours ahead of Ottawa — 7 hours
Ottawa, Canada
20:43:19
Sunday, May 10, 2026
UTC-4 · EDT (DST)
Cairo, Egypt
03:43:19
Monday, May 11, 2026
UTC+3 · EEST (DST)

Time Zone Details: Ottawa vs Cairo

Detail Ottawa Cairo
Time Zone IDAmerica/TorontoAfrica/Cairo
UTC OffsetUTC-4UTC+3
AbbreviationEDTEEST
DST ActiveYes — currently observingYes — currently observing
CountryCanadaEgypt
RegionNorth AmericaAfrica

Best Time to Schedule a Call

There are 1 overlapping business hours between Ottawa and Cairo (assuming 9:00–17:00 in each city). The ideal window for calls and meetings is:

09:00–10:00 in Ottawa  =  16:00–17:00 in Cairo

Hour-by-Hour Time Conversion

Use this table to quickly convert any hour from Ottawa time to Cairo time. Rows highlighted in green indicate overlapping business hours in both cities.

Ottawa Cairo
00:00 07:00 Night
01:00 08:00 Night
02:00 09:00 Night
03:00 10:00 Night
04:00 11:00 Night
05:00 12:00 Night
06:00 13:00
07:00 14:00
08:00 15:00
09:00 16:00 Overlap
10:00 17:00
11:00 18:00
12:00 19:00
13:00 20:00
14:00 21:00
15:00 22:00
16:00 23:00
17:00 00:00 (+1 day)
18:00 01:00 (+1 day)
19:00 02:00 (+1 day)
20:00 03:00 (+1 day)
21:00 04:00 (+1 day)
22:00 05:00 (+1 day) Night
23:00 06:00 (+1 day) Night

Daylight Saving Time (DST) Impact

Both Ottawa and Cairo are currently observing daylight saving time. The current 7 hours difference reflects both cities' DST offsets. When one city switches back to standard time before the other, the gap will temporarily change by 1 hour.

Practical Tips for Ottawa–Cairo Scheduling

Compare Ottawa and Cairo with Other Cities

From Ottawa

From Cairo

Frequently Asked Questions

What is the time difference between Ottawa and Cairo?

The time difference is 7 hours. Cairo is 7 hours ahead of Ottawa.

Does the time difference change during the year?

Yes. Both cities observe daylight saving time, but they may switch on different dates, causing the gap to shift by 1 hour temporarily.

When is the best time to call from Ottawa to Cairo?

The best window is between 09:00 and 10:00 Ottawa time, which corresponds to 16:00–17:00 in Cairo. Both sides fall within normal business hours.

How do I convert Ottawa time to Cairo time?

Add 7 hours to Ottawa time to get Cairo time. Use the hour-by-hour table above for a quick reference.

Related Pages

For sunrise and sunset data, visit TheSunsetTimes.com. For detailed DST schedules, see DaylightSavingTime.info.