No overlap — one side will join outside working hours
AST (Riyadh)
PST (Los Angeles)
00:00
14:00-1dWorking
01:00
15:00-1dWorking
02:00
16:00-1dWorking
03:00
17:00-1d
04:00
18:00-1d
05:00
19:00-1d
06:00
20:00-1d
07:00
21:00-1d
08:00
22:00-1d
09:00Working
23:00-1doff
10:00Working
00:00off
11:00Working
01:00off
12:00Working
02:00off
13:00Working
03:00off
14:00Working
04:00off
15:00Working
05:00off
16:00Working
06:00off
17:00
07:00
18:00
08:00
19:00
09:00Working
20:00
10:00Working
21:00
11:00Working
22:00
12:00Working
23:00
13:00Working
Working hours: 09:00–17:00 local. Green = both working.Purple = one side only.
Frequently Asked Questions
What is the difference between ast and pst?
Arabia Standard Time (ast) is UTC+3 and Pacific Standard Time (pst) is UTC-7. The difference between them is 10 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 pst used?
Pacific Standard Time (pst) is used in USA and surrounding regions. The IANA timezone identifier is America/Los_Angeles.
How do I convert ast to pst?
Use the interactive converter above. Drag the time slider to any ast time and the pst equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.
Time difference: AST (Riyadh) and PST (Los Angeles)
AST (Riyadh) is 10 hours ahead of PST (Los Angeles). When it's noon in AST (Riyadh), it's 02:00 in PST (Los Angeles).
AST (Riyadh) is in the Asia/Riyadh timezone. PST (Los Angeles) is in America/Los_Angeles. The difference is 10 hours.
Business hours comparison
AST (Riyadh) and PST (Los Angeles) have no shared working hours under a standard 9:00–17:00 schedule. One side will always need to join at an off-hour.
Recommended meeting windows
Since AST (Riyadh) and PST (Los Angeles) don't share working hours, these are the most practical options available.
16:00 Riyadh / 06:00 Los Angeles⚡ One side off-hours
⚠️ 3h before working hours in Los Angeles
19:00 Riyadh / 09:00 Los Angeles⚡ One side off-hours
⚠️ 3h after working hours in Riyadh
15:00 Riyadh / 05:00 Los Angeles⚡ One side off-hours
⚠️ 4h before working hours in Los Angeles
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.
PST (Los Angeles)8 holidays
Jun 19Juneteenth National Independence DaySOON
Jul 3Independence Day
Sep 7Labour Day
Oct 12Columbus Day
Oct 12Indigenous Peoples' Day
AST (Riyadh) and PST (Los Angeles) — practical scheduling
Teams in AST (Riyadh) (Saudi Arabia) and PST (Los Angeles) (USA) deal with a 10-hour gap that pushes their working days apart. Real-time meetings always require someone to stretch outside the standard 9–5.
💡 Practical scheduling guidelines
⚡
When AST (Riyadh) is at 16:00, PST (Los Angeles) reads 06:00 — 3h before working hours in Los Angeles.
⚡
When AST (Riyadh) is at 19:00, PST (Los Angeles) reads 09:00 — 3h after working hours in Riyadh.
⚡
When AST (Riyadh) is at 15:00, PST (Los Angeles) reads 05:00 — 4h before working hours in Los Angeles.
With no shared business hours, these slots distribute the scheduling burden as evenly as possible between both locations.
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.