Work in progressTimezonePair is still being built — expect rough edges & missing cities
TimezonePair
Home·Colombo·Colombo × Ottawa
Prime meridian·:: UTC·

Colombo×Ottawa

Sri Lanka · LK
Colombo
—:—
Asia/Colombo·
No DST
Canada · CA
Ottawa
—:—
America/Toronto·
DST active

Colombo is 9.5 hours behind Ottawa. Scrub a time, meet in the overlap, ship the invite — before the kettle boils.

◊ at a glance

Three numbers. The ones that decide the meeting.

01
Difference
9.5h behind
Colombo vs Ottawa
02
Overlap
0h
Business hours 09:00 – 17:00
03
UTC offsets
GMT+5:30 / GMT-4
Colombo · Toronto
04
Flight
16h 37m
13,706 km · great-circle, non-stop cruise
◊ the overlap

When the world meets at work.

24-hour overlap
No overlap in working hours
Colombo
—:—
0
3
6
9
12
15
18
21
Ottawa
—:—
Scrub a meeting time14:00 Colombo
Same moment in Ottawa04:30 Ottawa
◊ hour by hour

Read the day in both zones.

Share this meeting
timezonepair.com/from/colombo/to/ottawa?t=14&a=A&d=2026-05-22&dur=60
14:00 Colombo04:30 Ottawa
Full 24-hour reference
ColomboOttawa
00:00
14:00Ottawa only
01:00
15:00Ottawa only
02:00
16:00Ottawa only
03:00
17:00
04:00
18:00
05:00
19:00
06:00
20:00
07:00
21:00
08:00
22:00
09:00Colombo only
23:00
10:00Colombo only
00:00
11:00Colombo only
01:00
12:00Colombo only
02:00
13:00Colombo only
03:00
14:00Colombo only
04:00
15:00Colombo only
05:00
16:00Colombo only
06:00
17:00
07:00
18:00
08:00
19:00
09:00Ottawa only
20:00
10:00Ottawa only
21:00
11:00Ottawa only
22:00
12:00Ottawa only
23:00
13:00Ottawa only
◊ travel essentials

Crossing the border. Money, language, plugs.

Money changes hands at the border: Colombo uses the LKR (Rs රු) and Ottawa uses the CAD ($). Language shifts too — Sinhala in Colombo, English in Ottawa. Be careful behind the wheel: Colombo drives on the left, Ottawa on the right.

Colombo
Country
Sri Lanka
Capital
Sri Jayawardenepura Kotte
Currency
Sri Lankan rupee (LKR · Rs රු)
Language
Sinhala, Tamil
Calling code
+94
Drives on
Left
Ottawa
Country
Canada
Capital
Ottawa
Currency
Canadian dollar (CAD · $)
Language
English, French
Calling code
+1
Drives on
Right
◊ common questions

Quick answers. Before you book the call.

What's the time difference between Colombo and Ottawa?

Colombo is 9.5 hours behind Ottawa. Colombo runs on GMT+5:30 and Ottawa on GMT-4. The gap can shift by an hour when either side enters or leaves daylight saving — the live clocks above always reflect the current offset.

When's the best time to schedule a meeting?

Standard 09:00–17:00 workdays don't intersect. Most teams compromise with one side meeting early (before 09:00) or late (after 17:00).

Does daylight saving time change the difference?

Yes, if either city observes DST. When one side shifts and the other doesn't, the gap changes by one hour. The DST badges under each clock show whether each zone is currently shifted and when the next transition lands.

How far is Colombo from Ottawa?

About 13,706 km as the crow flies (great-circle distance). A non-stop commercial flight cruises that in roughly 16h 37m, not counting airport time, winds, or routing around restricted airspace.

Can I send this meeting time as a calendar invite?

Yes. Pick a time on the slider above, open the meeting card, customize the title and duration, then download the .ics file. It imports cleanly into Google Calendar, Outlook, and Apple Calendar with the correct timezone attached.

What currency do Colombo and Ottawa use?

Colombo uses the Sri Lankan rupee (LKR, Rs රු); Ottawa uses the Canadian dollar (CAD, $). Check the live rate before transferring money or paying with a card abroad — most banks add a 1–3 % FX margin on top of the mid-market rate.

How do I call Colombo from Ottawa?

Dial the international prefix used by your carrier (often 011), then +94, then the local number — drop any leading zero of the city or mobile code. For free calls, WhatsApp, Signal, and FaceTime work over Wi-Fi regardless of country code.

What language is spoken in Colombo and Ottawa?

Colombo primarily speaks Sinhala, Tamil; Ottawa speaks English, French. English is widely used in business contexts in major cities of both, but written contracts may need translation.

Do Colombo and Ottawa drive on the same side of the road?

No. Sri Lanka drives on the left, Canada on the right. If you're renting, expect a learning curve on the first day — especially at roundabouts and when judging the centre of the lane.

◊ keep going

One pair down. 299 cities to go.

Every pair in 300 cities runs the same clocks, the same overlap, the same one-click invite. Pick another.

COLOMBO · Asia/Colombo
GMT+5:30 · 6.93°, 79.86°

OTTAWA · America/Toronto
GMT-4 · 45.42°, -75.70°

0h shared · 9.5h behind