Riyadh to Concord time converter

Concord is 10 hours behind Riyadh. When it is 9:00 AM in Riyadh, it is 11:00 PM (Fri, Oct 16) in Concord.

Riyadh AST

Saturday, October 17, 2026

Concord PDT

Friday, October 16, 2026

Riyadh
Saudi Arabia
Sat, Oct 17
ASTUTC+3
Concord
California, United States
Fri, Oct 16
PDTUTC-7-10h
Finding your time zone…
Shared working hours (9:00–18:00)

Riyadh to Concord conversion table

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

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

Best time to call or meet

Working hours don't overlap fully. The closest fit is 5:00 PM – 6:00 PM in Riyadh (7:00 AM – 8:00 AM in Concord): working hours on one side, early or late on the other.

Daylight saving time and the difference

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

  • Oct 17, 2026 – Nov 1, 2026: -10h
  • Nov 1, 2026 – Mar 14, 2027: -11h
  • Mar 14, 2027 – Oct 17, 2027: -10h

Distance

Riyadh and Concord are 12,949 km (8,046 miles) apart in a straight line.

More conversions

Concord 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 ConcordLondon to ConcordLos Angeles to ConcordChicago to ConcordToronto to ConcordSão Paulo to ConcordParis to ConcordBerlin to ConcordMoscow to ConcordDubai to ConcordNew Delhi to ConcordBangkok to Concord

Questions and answers

What is the time difference between Riyadh and Concord?

Concord is 10 hours behind Riyadh.

What time is it in Concord when it is 9 AM in Riyadh?

When it is 9:00 AM in Riyadh, it is 11:00 PM (Fri, Oct 16) in Concord.

When is the best time to call Concord from Riyadh?

Working hours don't overlap fully. The closest fit is 5:00 PM – 6:00 PM in Riyadh (7:00 AM – 8:00 AM in Concord): working hours on one side, early or late on the other.

Does the time difference between Riyadh and Concord change?

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