Riyadh to AST Time — Convert Riyadh to Atlantic Standard Time

AST is currently 6 hours behind Riyadh.

On Clockjumper, AST refers to Atlantic Standard Time in Atlantic Canada and the Caribbean (UTC−4). The same letters are also used for Arabia Standard Time (UTC+3) — check the city or UTC offset to be sure which is meant.

Around January AST is 7 hours behind Riyadh. Around July it is 6 hours behind Riyadh. That swing comes from one or both zones observing daylight saving on different schedules — the converter above always reflects the correct offset for the date you pick.

Is AST ahead of or behind Riyadh right now?

AST is currently 6 hours behind Riyadh.

What is the current Riyadh to AST time difference?

Right now the gap is 6 hours — AST is 6 hours behind Riyadh.

Does the Riyadh → AST offset change during the year?

Yes. Around January AST is 7 hours behind Riyadh; around July it is 6 hours behind Riyadh. The converter above always reflects the correct offset for the date you pick.

Does Riyadh observe daylight saving time?

No — Riyadh stays at a fixed UTC offset year-round.

Does AST observe daylight saving time?

AST is itself the standard-time form. Atlantic Standard Time is in force at UTC-4 through the winter months; outside that window the same zone is on ADT (UTC-3).

What time is 3 AM Riyadh in AST?

3:00 AM Riyadh is 9:00 PM (previous day) AST.

What time is 8 AM Riyadh in AST?

8:00 AM Riyadh is 2:00 AM AST.

What time is 9 AM Riyadh in AST?

9:00 AM Riyadh is 3:00 AM AST.

What time is 10 AM Riyadh in AST?

10:00 AM Riyadh is 4:00 AM AST.

What time is 11 AM Riyadh in AST?

11:00 AM Riyadh is 5:00 AM AST.

What time is 12 PM (noon) Riyadh in AST?

12:00 PM Riyadh is 6:00 AM AST.

What time is 2 PM Riyadh in AST?

2:00 PM Riyadh is 8:00 AM AST.

What time is 3 PM Riyadh in AST?

3:00 PM Riyadh is 9:00 AM AST.

What time is 4 PM Riyadh in AST?

4:00 PM Riyadh is 10:00 AM AST.

What time is 5 PM Riyadh in AST?

5:00 PM Riyadh is 11:00 AM AST.

What time is 9 PM Riyadh in AST?

9:00 PM Riyadh is 3:00 PM AST.

What time is 10 PM Riyadh in AST?

10:00 PM Riyadh is 4:00 PM AST.

When is the best time to schedule a call between Riyadh and AST?

The working-hours overlap (09:00–17:00 in both zones) runs roughly 3:00 PM – 5:00 PM Riyadh (≈ 2 hours). The midpoint of that window — 4:00 PM Riyadh, 10:00 AM AST — is the safest single slot to propose for a live call.

What time zone does Riyadh refer to?

Riyadh uses the Asia/Riyadh time zone.

What time zone does AST refer to?

AST refers to Atlantic Standard Time (IANA: America/Halifax).

Is AST on this page the same as other zones that share the letters "AST"?

On Clockjumper, AST refers to Atlantic Standard Time in Atlantic Canada and the Caribbean (UTC−4). The same letters are also used for Arabia Standard Time (UTC+3) — check the city or UTC offset to be sure which is meant.

• AST to Riyadh
• EST to Riyadh
• AST to CST
• IST to Riyadh
• AST to EST
• PST to Riyadh
• AST to GMT
• Riyadh to EST
• AST to IST
• Riyadh to IST
• AST to MST
• Riyadh to PST
• AST to PST
• Riyadh to UTC
• CST to AST

• Current time in Riyadh →
• About AST (Atlantic Standard Time) →
• All timezone conversion pages →
• Research: how daylight saving shifts workday overlap →