Saudi Arabia
AST
12am
3am
6am
9am
12pm
3pm
6pm
9pm
KST
Korea Standard Time
GMT +9
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Compare Riyadh time with KST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

AST (Arabia Standard Time) is 6 hours behind Korea Standard Time
3:00 pm15:00 in Riyadh, Saudi Arabia is 9:00 pm21:00 in KST

Riyadh to KST call time
Best time for a conference call or a meeting is between 9am-11am in Riyadh which corresponds to 3pm-5pm in KST

3:00 pm15:00 AST (Arabia Standard Time) (Riyadh, Saudi Arabia). Offset UTC +3:00 hours
9:00 pm21:00 Korea Standard Time (KST). Offset UTC +9:00 hours

3:00 pm15:00 Riyadh, Saudi Arabia / 9:00 pm21:00 KST

Riyadh, Saudi ArabiaKST
12am (midnight)6am
1am7am
2am8am
3am9am
4am10am
5am11am
6am12pm (noon)
7am1pm
8am2pm
9am3pm
10am4pm
11am5pm
12pm (noon)6pm
1pm7pm
2pm8pm
3pm9pm
4pm10pm
5pm11pm
6pm12am (midnight)
7pm1am
8pm2am
9pm3am
10pm4am
11pm5am
00:0006:00
01:0007:00
02:0008:00
03:0009:00
04:0010:00
05:0011:00
06:0012:00
07:0013:00
08:0014:00
09:0015:00
10:0016:00
11:0017:00
12:0018:00
13:0019:00
14:0020:00
15:0021:00
16:0022:00
17:0023:00
18:0000:00
19:0001:00
20:0002:00
21:0003:00
22:0004:00
23:0005:00

Riyadh Information

Time Zone

Abbreviation / Name
AST - Arabia Standard Time
UTC / GMT Offset
+3:00 hours during Arabia Standard Time, currently in use.

Riyadh Facts

Country
Saudi Arabia
Alternative Names
Al-Riad, Al-Riyad, Ar Riyadh, Ar Riyādh, Ar-Riaad, Ar-Rijad, Ar-Riyad, Ar-Riyod, Ar-Riyāḑ, Ehr-Rijad, Ehr-Ryjad, Er-Rijad, Er-riyad, RUH, Riaad, Riad, Riade, Riadi, Riado, Riadum, Riant, Rihad, Rijad, Rijada, Rijadas, Rijád, Rijāda, Riyad, Riyadh, Riyaḍ, Ríad, alryad, er-riadi, li ya de, liyadeu, raiyadha, ri'ada, ri'adha, riyad, riyada, riyadh, riyadha, riyado, riyat, ryad, ryyad, Ər-Riyad, Ριάντ, Ар-Рияд, Ер-Ріяд, Рияд, Ријад, Эр-Рияд, Эр-Рыяд, Ալ-Ռիադ, ריאד, الرياض, رىياد, رياض, ریاض, ڕیاز, रियाद, रियाध, রিয়াদ, ৰিয়াধ, ਰਿਆਧ, ରିଆଦ, ரியாத், ರಿಯಾಧ್, റിയാദ്, ริยาด, རིས་ཡག, ერ-რიადი, ሪያድ, リヤド, 利雅得, 利雅德, 리야드
Population
4,205,961
Currency
Rial (SAR)
Geographic Coordinates
24° 41' N Latitude / 46° 43' E Longitude
International Dialing Code
+966

Korea Standard Time

Offset: KST is 9 hours ahead Greenwich Mean Time (GMT) and is used in Asia

Countries using this time zone: Korea (North), Korea (South)

Principal Cities: The largest city in the KST time zone is Seoul in South Korea, with about 10.349 million people. Other major cities in this time zone include Busan, Pyongyang, Incheon, Daegu.

Daylight Saving: Clocks in Korea Standard Time (KST) do not change for daylight saving time, so KST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.

KST Time Zone Geo Map
KST timezone map

KST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +09 - basic short
  • +0900 - basic
  • +09:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0900 - sign character (+) followed by a four digit time providing hours (09) and minutes (00) of the offset. Indicates an offset of nine hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • India - Military abbreviation for KST
  • I - short form of 'India'
IANA/Olson: Reflects KST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Asia/Pyongyang
  • Asia/Seoul
  • ROK
KST Abbreviation: Several time zones share KST abbreviation and it could refer to these time zones
  • Korea Standard Time - UTC +9
  • Pyongyang Time - UTC +8:30
Time zones with the GMT +9 offset:
  • AWDT - Australian Western Daylight Time
  • CHOST - Choibalsan Summer Time
  • I - India Time Zone
  • IRKST - Irkutsk Summer Time
  • JST - Japan Standard Time
  • KST - Korea Standard Time
  • PWT - Palau Time
  • TLT - East Timor Time
  • ULAST - Ulaanbaatar Summer Time
  • WIT - Eastern Indonesian Time
  • YAKT - Yakutsk Time