AST to Riyadh Time — Convert Atlantic Standard Time to Riyadh

Riyadh is currently 6 hours ahead of 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.

Around January Riyadh is 7 hours ahead of AST. Around July it is 6 hours ahead of AST. 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 Riyadh ahead of or behind AST right now?

Riyadh is currently 6 hours ahead of AST.

What is the current AST to Riyadh time difference?

Right now the gap is 6 hours — Riyadh is 6 hours ahead of AST.

Does the AST → Riyadh offset change during the year?

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

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).

Does Riyadh observe daylight saving time?

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

What time is 3 AM AST in Riyadh?

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

What time is 8 AM AST in Riyadh?

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

What time is 9 AM AST in Riyadh?

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

What time is 10 AM AST in Riyadh?

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

What time is 11 AM AST in Riyadh?

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

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

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

What time is 2 PM AST in Riyadh?

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

What time is 3 PM AST in Riyadh?

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

What time is 4 PM AST in Riyadh?

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

What time is 5 PM AST in Riyadh?

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

What time is 9 PM AST in Riyadh?

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

What time is 10 PM AST in Riyadh?

10:00 PM AST is 4:00 AM (next day) Riyadh.

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

The working-hours overlap (09:00–17:00 in both zones) runs roughly 9:00 AM – 11:00 AM AST (≈ 2 hours). The midpoint of that window — 10:00 AM AST, 4:00 PM Riyadh — is the safest single slot to propose for a live call.

What time zone does AST refer to?

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

What time zone does Riyadh refer to?

Riyadh uses the Asia/Riyadh time zone.

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.

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

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