Working hours: 09:00–17:00 local. Green = both working.Purple = one side only.
Frequently Asked Questions
What is the difference between ast and toronto?
Arabia Standard Time (ast) is UTC+3 and TORONTO (Toronto) (toronto) is UTC-4. 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 toronto used?
TORONTO (Toronto) (toronto) is used in Canada and surrounding regions. The IANA timezone identifier is America/Toronto.
How do I convert ast to toronto?
Use the interactive converter above. Drag the time slider to any ast time and the toronto equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.
AST (Riyadh) is 7 hours ahead of Toronto. When it's noon in AST (Riyadh), it's 05:00 in Toronto.
AST (Riyadh) is in the Asia/Riyadh timezone. Toronto is in America/Toronto. The difference is 7 hours.
Business hours comparison
Both AST (Riyadh) and Toronto are simultaneously in business hours for 1 hour per day (assuming standard 9:00–17:00 working hours).
00:0006:0012:0018:0024:00
AST (Riyadh)
Toronto
Overlap (1h)
Recommended meeting windows
Both AST (Riyadh) and Toronto are in standard hours simultaneously for 1h per day.
16:00 Riyadh / 09:00 Toronto✓ Both working
Based on standard 09:00–17:00 working hours in each location's local time.
Public holidays this year
AST (Riyadh)
No upcoming public holidays this year.
Toronto19 holidays
Jun 24Discovery DayTODAY
Jun 24National HolidayTODAY
Jul 1Canada DaySOON
Jul 12Orangemen's Day
Aug 3Civic Holiday
AST (Riyadh) and Toronto — practical scheduling
AST (Riyadh) (Saudi Arabia) leads Toronto (Canada) by 7 hours. Despite the gap, a 1-hour window of shared business hours each day keeps real-time collaboration practical for both sides.
💡 Practical scheduling guidelines
✅
16:00–17:00 in AST (Riyadh) = 09:00–10:00 in Toronto. Both sides are in standard business hours during this window.
DST transitions can silently shift your meeting times by an hour. The ClockinSync Chrome Extension tracks these changes automatically so you never get caught off guard.
Use the time slider above to find the exact equivalent time for any moment in AST (Riyadh). The input bar accepts natural language like "3pm", "15:30", or "9am Rome" for instant conversions.