Riyadh to AKST
-12hRiyadh
ASTSOURCEAKST
AKSTGreen rows indicate typical business hours (9 AM - 5 PM)
AST and AKST on the World Map
The map below highlights the AST (Arabia Standard Time) and AKST (Alaska Standard Time) timezone regions across the globe.
AST – Arabia Standard Time
UTC+03:00Arabia Standard Time (AST, UTC+03:00) is the time zone for Saudi Arabia and the other Gulf states of the Arabian peninsula.
- •None of the Gulf states on Arabia Standard Time observe daylight saving.
- •AST is the same offset as Moscow Standard Time and East Africa Time.
- •Riyadh is one hour ahead of Central European Time in winter.
- •The AST abbreviation is shared with Atlantic Standard Time (UTC-04:00).
AKST – Alaska Standard Time
UTC-09:00Alaska Standard Time (AKST) is the time zone for the state of Alaska, 9 hours behind UTC.
- •Alaska is the largest US state by area but has only about 730,000 residents.
- •Anchorage is the most populous city in AKST with about 290,000 people.
- •The Aleutian Islands use HAST instead of AKST.
About Riyadh
WikipediaRiyadh operates on Arabia Standard Time (AST), UTC+3. As OPEC's de facto capital and home to Tadawul, Riyadh time impacts global energy markets.
Riyadh is growing rapidly as part of Saudi Vision 2030 modernization.
Time Conversion Guide: Riyadh to AKST
Riyadh runs on Arabian Standard Time (AST) at UTC+03:00. AKST runs on Alaska Standard Time (AKST) at UTC-09:00. That puts Riyadh 12 hours behind AKST — a difference of -12h at the current offsets.
In practice, when it is 9:00 AM in Riyadh it is 9:00 PM in AKST on the previous day. Midnight in Riyadh is 12:00 PM in AKST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Riyadh to AKST time conversion table
| Riyadh (AST) | AKST (AKST) | Day |
|---|---|---|
| 12:00 AM | 12:00 PM | previous day |
| 6:00 AM | 6:00 PM | previous day |
| 7:00 AM | 7:00 PM | previous day |
| 8:00 AM | 8:00 PM | previous day |
| 9:00 AM | 9:00 PM | previous day |
| 12:00 PM | 12:00 AM | same day |
| 3:00 PM | 3:00 AM | same day |
| 5:00 PM | 5:00 AM | same day |
| 6:00 PM | 6:00 AM | same day |
| 9:00 PM | 9:00 AM | same day |
Why people convert Riyadh to AKST time
- Scheduling a call from Riyadh to AKST: a 10:00 AM start in Riyadh lands at 10:00 PM in AKST the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -12h gap: Riyadh and AKST have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in AKST is 9:00 PM in Riyadh.
- Keeping family and friends in sync: knowing that 8:00 PM in Riyadh is 8:00 AM in AKST makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM AST" is unambiguous; "3 PM" across a -12h gap is not.
- With a -12h gap there is no shared 9-to-5 window, so alternate the early start: one week Riyadh takes the early slot, the next week AKST does.
About AST (Arabia Standard Time)
Arabia Standard Time (AST) is fixed at UTC+03:00 all year across Saudi Arabia, Qatar, Kuwait, Bahrain, Iraq and Yemen. None of these countries observes daylight saving time, so the offset never changes. The abbreviation collides with Atlantic Standard Time (UTC-04:00) used in eastern Canada and the Caribbean; this page covers the Arabian peninsula meaning. Arabia Standard Time is the same offset as Moscow Standard Time and East Africa Time, which makes scheduling with Europe straightforward — Riyadh is one hour ahead of Central European Time in winter and level with it during European summer time.
About AKST (Alaska Standard Time)
Alaska Standard Time (AKST) is used in nearly all of Alaska. Due to Alaska's vast geographic size, the Aleutian Islands use Hawaii-Aleutian Standard Time instead. During summer months, Alaska switches to Alaska Daylight Time (AKDT, UTC-08:00).
Best time to call between Riyadh and AKST
With a -12h offset there is no overlap inside a normal 9 AM – 5 PM day. AKST opens at 9:00 AM AKST, which is 9:00 PM in Riyadh, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
Riyadh and AKST have no shared working hours because of the -12h gap. Teams need to alternate early starts or rely on asynchronous handovers.
Riyadh is 12 hours behind AKST (AST UTC+03:00 → AKST UTC-09:00). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
Riyadh
Does not observe DST
AKST
☀ Currently in DST
Standard: UTC-09:00 · DST: UTC-08:00
Clocks fall back on Sun, Nov 1, 2026
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between Riyadh and AKST?
Riyadh (AST, UTC+03:00) is 12 hours behind AKST (AKST, UTC-09:00). The gap is currently -12h.
How do I convert Riyadh time to AKST time?
Add -12h to Riyadh local time. For example, 9:00 AM in Riyadh is 9:00 PM in AKST (previous day).
What time is it in AKST right now?
AKST uses AKST at UTC-09:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -12h offset from Riyadh.
What is the best time to call AKST from Riyadh?
There is no shared working-hours window because of the -12h gap. The closest option is 1:00 PM in Riyadh, which is 1:00 AM in AKST.
Which is behind, Riyadh or AKST?
Riyadh is 12 hours behind AKST. When it is 12:00 PM in Riyadh it is 12:00 AM in AKST.
Do Riyadh and AKST use different time zones?
Riyadh (Saudi Arabia) uses AST at UTC+03:00, while AKST uses AKST at UTC-09:00. The IANA identifiers are Asia/Riyadh and America/Anchorage.
Does daylight saving time affect the Riyadh–AKST difference?
Neither zone observes daylight saving time, so the -12h offset between Riyadh and AKST is fixed all year.
Which other cities share Riyadh's time zone?
AST also covers Riyadh, Jeddah, Doha, Kuwait City, Baghdad.
Which countries use AST, Riyadh's zone?
AST is used in Saudi Arabia, Qatar, Kuwait, Bahrain, Iraq, Yemen.
Is there a day difference between Riyadh and AKST?
Sometimes. The -12h gap is large enough that 8:00 PM or later in Riyadh already falls on the in AKST.
What is the time difference between Riyadh and AKST?
AKST is -12h from Riyadh.
What timezone is Riyadh in?
Riyadh operates on Arabia Standard Time (AST), UTC+3. As OPEC's de facto capital and home to Tadawul, Riyadh time impacts global energy markets.
What timezone is AKST in?
AKST operates on its local timezone.
What are the business hours in Riyadh?
Standard business hours in Riyadh are 8:00 AM - 4:00 PM AST (Sunday-Thursday).
Which countries use AST (Arabia Standard Time)?
AST is used in Saudi Arabia, Qatar, Kuwait, Bahrain, Iraq, Yemen.
Does AST observe daylight saving time?
No, AST does not observe daylight saving time and remains at UTC+03:00 year-round.
What are some interesting facts about AST?
None of the Gulf states on Arabia Standard Time observe daylight saving. AST is the same offset as Moscow Standard Time and East Africa Time.
Which cities are in the AKST timezone?
Major cities in the AKST timezone include Anchorage, Fairbanks, Juneau, Sitka, Wasilla.
What is the UTC offset for AKST?
Alaska Standard Time (AKST) is at UTC-09:00. During daylight saving time, it shifts to AKDT.
What should I know about the AKST timezone?
Alaska is the largest US state by area but has only about 730,000 residents. Anchorage is the most populous city in AKST with about 290,000 people.
When is it midnight in Riyadh, what time is it in AKST?
When it is 12:00 AM (midnight) in Riyadh (AST), it is -12h later in AKST (AKST).
Related Developer Tools
Explore more tools that work great with timezone conversions for international teams:
Related Timezone Conversions
More Riyadh time conversions
- riyadh to saudi arabia
- riyadh to dubai
- riyadh to mumbai
- riyadh to delhi
- riyadh to bangalore
- riyadh to kathmandu
- riyadh to bangkok
- riyadh to singapore
- riyadh to hong kong
- riyadh to shanghai
- riyadh to beijing
- riyadh to tokyo
- riyadh to osaka
- riyadh to new york
- riyadh to london
- riyadh to sydney
- riyadh to los angeles
- riyadh to paris
- riyadh to berlin
- riyadh to toronto
- new york to riyadh
- london to riyadh
- dubai to riyadh
- tokyo to riyadh
- singapore to riyadh
- sydney to riyadh
- los angeles to riyadh
- paris to riyadh
- delhi to riyadh
- mumbai to riyadh
- berlin to riyadh
- hong kong to riyadh
- toronto to riyadh
- kathmandu to riyadh
See every conversion from Riyadh →·See every conversion from AKST →