PST
Pacific Standard Time
GMT -8
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Saudi Arabia
AST
12am
3am
6am
9am
12pm
3pm
6pm
9pm

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

Time Difference

Pacific Standard Time is 11 hours behind AST (Arabia Standard Time)
4:00 am04:00 in PST is 3:00 pm15:00 in Riyadh, Saudi Arabia

PST to Riyadh call time
Best time for a conference call or a meeting is between 7am-8am in PST which corresponds to 6pm-7pm in Riyadh

4:00 am04:00 Pacific Standard Time (PST). Offset UTC -8:00 hours
3:00 pm15:00 AST (Arabia Standard Time) (Riyadh, Saudi Arabia). Offset UTC +3:00 hours

4:00 am04:00 PST / 3:00 pm15:00 Riyadh, Saudi Arabia

PSTRiyadh, Saudi Arabia
12am (midnight)11am
1am12pm (noon)
2am1pm
3am2pm
4am3pm
5am4pm
6am5pm
7am6pm
8am7pm
9am8pm
10am9pm
11am10pm
12pm (noon)11pm
1pm12am (midnight)
2pm1am
3pm2am
4pm3am
5pm4am
6pm5am
7pm6am
8pm7am
9pm8am
10pm9am
11pm10am
00:0011:00
01:0012:00
02:0013:00
03:0014:00
04:0015:00
05:0016:00
06:0017:00
07:0018:00
08:0019:00
09:0020:00
10:0021:00
11:0022:00
12:0023:00
13:0000:00
14:0001:00
15:0002:00
16:0003:00
17:0004:00
18:0005:00
19:0006:00
20:0007:00
21:0008:00
22:0009:00
23:0010:00

Pacific Standard Time

Offset: PST is 8 hours behind Greenwich Mean Time (GMT) and is used in North America

Countries using this time zone: Canada, Mexico, United States

Principal Cities: The largest city in the PST time zone is Los Angeles in the United States, with about 3.793 million people. Other major cities in this time zone include Vancouver, Tijuana, San Diego, San Jose.

French: HNP - Heure Normale du Pacifique

Spanish: PT - Tiempo del Pacífico, PT - Zona Noroeste

PST Time Zone Geo Map
PST timezone map

Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Pacific Daylight Time (PDT).

Daylight saving time clock moves back for one hour from 2am to 1amStart: Pacific Standard Time (PST) started on Sunday, November 2, 2025 at 2:00 am local time and clocks were set one hour back to Sunday, November 2, 2025, 1:00 am. Standard time starts annually on the first Sunday of November.

Daylight saving time clock moves forward for one hour from 2am to 3amEnd: Pacific Standard Time (PST) ends on Sunday, March 8, 2026 at 2:00 am local time and clocks are set one hour forward to Sunday, March 8, 2026, 3:00 am local daylight time instead. Standard time ends annually on the second Sunday of March.

PST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -08 - basic short
  • -0800 - basic
  • -08:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0800 - sign character (-) followed by a four digit time providing hours (08) and minutes (00) of the offset. Indicates an offset of eight hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Uniform - Military abbreviation for PST
  • U - short form of 'Uniform'
IANA/Olson: Reflects PST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Ensenada
  • America/Los_Angeles
  • America/Santa_Isabel
  • America/Tijuana
  • America/Vancouver
  • Canada/Pacific
  • Mexico/BajaNorte
  • PST8PDT
  • US/Pacific
PST Abbreviation: Several time zones share PST abbreviation and it could refer to these time zones
  • Pacific Standard Time - UTC -8
  • Pitcairn Standard Time - UTC -8
Time zones with the GMT -8 offset:
  • AKDT - Alaska Daylight Time
  • PST - Pacific Standard Time
  • PT - Pacific Time
  • PST - Pitcairn Standard Time
  • U - Uniform Time Zone

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