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PT/PDT
12am
3am
6am
9am
12pm
3pm
6pm
9pm
AST
UTC+3
10h ahead
12am
3am
6am
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12pm
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6pm
9pm

Quick answers

Selected conversion

5:00 am05:00 PDT (UTC-7), Oct 18, 2026 = 3:00 pm15:00 AST (UTC+3), Oct 18, 2026

PDT is 10 hours behind AST.

How the time difference changes

For most of the year, PT is 10 hours behind AST Arabia. From Nov 1, 2026 to Mar 14, 2027, PT is 11 hours behind AST Arabia.

For most of the year, working hours of 9:00 am to 6:00 pm in PT correspond to 7:00 pm to 4:00 am (next day) in AST Arabia. At other times of the year, working hours of 9:00 am to 6:00 pm in PT correspond to 8:00 pm to 5:00 am (next day) in AST Arabia.For most of the year, working hours of 09:00 to 18:00 in PT correspond to 19:00 to 04:00 (next day) in AST Arabia. At other times of the year, working hours of 09:00 to 18:00 in PT correspond to 20:00 to 05:00 (next day) in AST Arabia.

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

Time Difference

Pacific Daylight Time is 10 hours behind Arabia Standard Time.
5:00 am05:00 in PDT is 3:00 pm15:00 in AST

PDT to AST call time
Best time for a conference call or a meeting is between 8am-9am08:00-09:00 in PDT which corresponds to 6pm-7pm18:00-19:00 in AST. Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.

5:00 am05:00 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
3:00 pm15:00 Arabia Standard Time (AST). Offset UTC +3:00 hours

5:00 am05:00 PDT / 3:00 pm15:00 AST

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Hourly time comparison
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Pacific Time

Pacific Time (PT) is a general term used to describe the areas that observe either the Pacific Standard Time (PST) or Pacific Daylight Time (PDT) in North America. PT also called Pacific Coast Time. PT is not static but switches between PDT and PST.

Territories observing the Pacific Time Zone are primarily in North America. It runs through the western United States and the Northwestern part of Mexico. From November 1, 2026, most of British Columbia in Canada keeps UTC-7 all year instead.

Countries using this time zone: Mexico, United States

Principal Cities: The largest city in the PT time zone is Los Angeles in the United States, with about 3.821 million people. Other major cities in this time zone include Tijuana, San Diego, Mexicali, San Jose.

French: HNP - Heure Normale du Pacifique

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

PT 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 PT
  • U - short form of 'Uniform'
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

Arabia Standard Time

Offset: AST is 3 hours ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Bahrain, Iraq, Kuwait, Qatar, Saudi Arabia, Yemen

Principal Cities: The largest city in the AST time zone is Baghdad in Iraq, with about 7.216 million people. Other major cities in this time zone include Jeddah, Riyadh, Sanaa, Mosul.

Daylight Saving: Clocks in Arabia Standard Time (AST) do not change for daylight saving time, so AST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.

AST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +03 - basic short
  • +0300 - basic
  • +03:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0300 - sign character (+) followed by a four digit time providing hours (03) and minutes (00) of the offset. Indicates an offset of three hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Charlie - Military abbreviation for AST
  • C - short form of 'Charlie'
AST Abbreviation: Several time zones share AST abbreviation and it could refer to these time zones
  • Atlantic Standard Time - UTC -4
  • Arabia Standard Time - UTC +3
Time zones with the GMT +3 offset:
  • EEST - Eastern European Summer Time
  • MSK - Moscow Standard Time
  • AST - Arabia Standard Time
  • C - Charlie Time Zone
  • EAT - Eastern Africa Time
  • FET - Further Eastern European Time
  • IDT - Israel Daylight Time
  • TRT - Turkey Time