What time is it in London when it's noon in Riyadh?

When it's 12:00 PM in Riyadh, it's 9:00 AM in London.

How many hours apart are Riyadh and London?

Riyadh and London are separated by the current UTC-offset difference between their time zones, adjusted for daylight saving time on each side.

Riyadh uses Asia/Riyadh (the IANA time zone database identifier).

City time converter

Convert the current time in Riyadh, Saudi Arabia to London, UK. Daylight-saving adjustments applied automatically.

Common times in Riyadh and their equivalents in London:

Table computed using a fixed reference date for stability. Use the full converter for any date and time.

Country: Saudi Arabia
Zone: Asia/Riyadh

Country: UK
Zone: Europe/London

What time is it in London when it's noon in Riyadh?: When it's 12:00 PM in Riyadh, it's 9:00 AM in London.
How many hours apart are Riyadh and London?: Riyadh and London are separated by the current UTC-offset difference between their time zones, adjusted for daylight saving time on each side.
What time zone does Riyadh use?: Riyadh uses Asia/Riyadh (the IANA time zone database identifier).