Working hours: 09:00–17:00 local. Green = both working.Purple = one side only.
Frequently Asked Questions
What is the difference between ast and aest?
Arabia Standard Time (ast) is UTC+3 and Australian Eastern Standard Time (aest) is UTC+10. The difference between them is 7 hours.
Where is ast used?
Arabia Standard Time (ast) is used in Saudi Arabia and surrounding regions. The IANA timezone identifier is Asia/Riyadh. Note: ast is ambiguous and may refer to other timezones.
Where is aest used?
Australian Eastern Standard Time (aest) is used in Australia and surrounding regions. The IANA timezone identifier is Australia/Brisbane.
How do I convert ast to aest?
Use the interactive converter above. Drag the time slider to any ast time and the aest equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.
AST (Riyadh) to AEST (Brisbane) — exact time difference
AST (Riyadh) is 7 hours behind AEST (Brisbane). At noon in AST (Riyadh), your contact in AEST (Brisbane) sees 19:00.
AST (Riyadh) runs on Asia/Riyadh; AEST (Brisbane) runs on Australia/Brisbane. Together they are 7 hours apart.
Working hours overlap
AST (Riyadh) and AEST (Brisbane) share 1 hour of overlapping business hours daily — enough for real-time collaboration without anyone joining at odd hours.
00:0006:0012:0018:0024:00
AST (Riyadh)
AEST (Brisbane)
Overlap (1h)
Best call times between these locations
There is a 1-hour daily window where both locations are in business hours.
09:00 Riyadh / 16:00 Brisbane✓ Both working
Working hours defined as 09:00–17:00 local time for each location.
Public holidays for both locations
AST (Riyadh)
No upcoming public holidays this year.
AEST (Brisbane)7 holidays
Aug 3Picnic Day
Sep 28King's Birthday
Oct 5Labour Day
Oct 5King's Birthday
Nov 3Melbourne Cup
Scheduling between AST (Riyadh) and AEST (Brisbane)
AST (Riyadh) (Saudi Arabia) and AEST (Brisbane) (Australia) are 7 hours apart. With a 1-hour daily overlap in standard business hours, both teams can connect in real time without either side stretching beyond their normal workday.
💡 Scheduling tips for these locations
✅
If you are in AST (Riyadh), aim for 09:00–10:00, which corresponds to 16:00–17:00 in AEST (Brisbane) — both teams are within working hours.
Avoid scheduling mistakes — especially around daylight saving changes. Use the ClockinSync Chrome Extension to instantly verify and compare both time zones directly in your browser, without manual calculations.
Need a specific time? Use the slider or type directly into the input bar — it understands "3pm", "15:30", and location-specific formats like "9am AST (Riyadh)".