Riyadh to Aci Castello time converter

Aci Castello is 1 hour behind Riyadh. When it is 9:00 AM in Riyadh, it is 8:00 AM in Aci Castello.

Riyadh AST

Monday, October 19, 2026

Aci Castello CEST

Monday, October 19, 2026

Riyadh
Saudi Arabia
Mon, Oct 19
ASTUTC+3
Aci Castello
Italy
Mon, Oct 19
CESTUTC+2-1h
Finding your time zone…
Shared working hours (9:00–18:00)

Riyadh to Aci Castello conversion table

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

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

Best time to call or meet

Both sides are at work from 10:00 AM – 6:00 PM in Riyadh (9:00 AM – 5:00 PM in Aci Castello).

Daylight saving time and the difference

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

  • Oct 19, 2026 – Oct 25, 2026: -1h
  • Oct 25, 2026 – Mar 28, 2027: -2h
  • Mar 28, 2027 – Oct 19, 2027: -1h

Distance

Riyadh and Aci Castello are 3,308 km (2,055 miles) apart in a straight line.

More conversions

Aci Castello 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 Aci CastelloLondon to Aci CastelloLos Angeles to Aci CastelloChicago to Aci CastelloToronto to Aci CastelloSão Paulo to Aci CastelloParis to Aci CastelloBerlin to Aci CastelloMoscow to Aci CastelloDubai to Aci CastelloNew Delhi to Aci CastelloBangkok to Aci Castello

Questions and answers

What is the time difference between Riyadh and Aci Castello?

Aci Castello is 1 hour behind Riyadh.

What time is it in Aci Castello when it is 9 AM in Riyadh?

When it is 9:00 AM in Riyadh, it is 8:00 AM in Aci Castello.

When is the best time to call Aci Castello from Riyadh?

Both sides are at work from 10:00 AM – 6:00 PM in Riyadh (9:00 AM – 5:00 PM in Aci Castello).

Does the time difference between Riyadh and Aci Castello change?

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