Riyadh to Port Colborne time converter

Port Colborne is 7 hours behind Riyadh. When it is 9:00 AM in Riyadh, it is 2:00 AM in Port Colborne.

Riyadh AST

Monday, October 19, 2026

Port Colborne EDT

Monday, October 19, 2026

Riyadh
Saudi Arabia
Mon, Oct 19
ASTUTC+3
Port Colborne
Ontario, Canada
Mon, Oct 19
EDTUTC-4-7h
Finding your time zone…
Shared working hours (9:00–18:00)

Riyadh to Port Colborne conversion table

Every hour of today in Riyadh and the matching time in Port Colborne. Light rows are typical working hours (9:00–18:00).

RiyadhPort Colborne
12:00 AM5:00 PM−1 day
1:00 AM6:00 PM−1 day
2:00 AM7:00 PM−1 day
3:00 AM8:00 PM−1 day
4:00 AM9:00 PM−1 day
5:00 AM10:00 PM−1 day
6:00 AM11:00 PM−1 day
7:00 AM12:00 AM
8:00 AM1:00 AM
9:00 AM2:00 AM
10:00 AM3:00 AM
11:00 AM4:00 AM
12:00 PM5:00 AM
1:00 PM6:00 AM
2:00 PM7:00 AM
3:00 PM8:00 AM
4:00 PM9:00 AM
5:00 PM10:00 AM
6:00 PM11:00 AM
7:00 PM12:00 PM
8:00 PM1:00 PM
9:00 PM2:00 PM
10:00 PM3:00 PM
11:00 PM4:00 PM

Best time to call or meet

Both sides are at work from 4:00 PM – 6:00 PM in Riyadh (9:00 AM – 11:00 AM in Port Colborne).

Daylight saving time and the difference

The difference changes during the year because Riyadh and Port Colborne switch clocks on different dates:

  • Oct 19, 2026 – Nov 1, 2026: -7h
  • Nov 1, 2026 – Mar 14, 2027: -8h
  • Mar 14, 2027 – Oct 19, 2027: -7h

Distance

Riyadh and Port Colborne are 10,687 km (6,641 miles) apart in a straight line.

More conversions

Port Colborne to RiyadhRiyadh to New YorkRiyadh to LondonRiyadh to Los AngelesRiyadh to ChicagoRiyadh to TorontoRiyadh to São PauloRiyadh to ParisRiyadh to BerlinRiyadh to MoscowRiyadh to DubaiRiyadh to New DelhiRiyadh to Bangkok
New York to Port ColborneLondon to Port ColborneLos Angeles to Port ColborneChicago to Port ColborneToronto to Port ColborneSão Paulo to Port ColborneParis to Port ColborneBerlin to Port ColborneMoscow to Port ColborneDubai to Port ColborneNew Delhi to Port ColborneBangkok to Port Colborne

Questions and answers

What is the time difference between Riyadh and Port Colborne?

Port Colborne is 7 hours behind Riyadh.

What time is it in Port Colborne when it is 9 AM in Riyadh?

When it is 9:00 AM in Riyadh, it is 2:00 AM in Port Colborne.

When is the best time to call Port Colborne from Riyadh?

Both sides are at work from 4:00 PM – 6:00 PM in Riyadh (9:00 AM – 11:00 AM in Port Colborne).

Does the time difference between Riyadh and Port Colborne change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.