PST to AEST Time Converter - Live World Clock

Convert time between Pacific Standard Time (PST) and Australian Eastern Standard Time (AEST). See current time with live clocks.

United States (PST)

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10:27:45 AM
Thursday, August 20, 2026

Australia (AEST)

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03:27:45 AM
Friday, August 21, 2026

Current Time Difference

PST is -18 hours behind AEST

(-18 hours during Daylight Saving Time)

What is PST (Pacific Standard Time)?

Pacific Standard Time (PST) for the west coast of North America, UTC-8:00.

Countries and Regions Using PST

Primary Country:

  • United States
  • States: California, Washington, Oregon

Also Used By:

  • Canada - British Columbia
  • Mexico

Key Facts about PST:

  • ✓ Silicon Valley tech hub
  • ✓ Hollywood entertainment center
  • ✓ Major port cities
  • ✓ Major Cities: Los Angeles, San Francisco, San Diego, Seattle, Portland
  • ✓ UTC Offset: -8:00 (-7:00 during PDT)

What is AEST (Australian Eastern Standard Time)?

Australian Eastern Standard Time (AEST) used in eastern Australia, UTC+10:00.

Countries and Regions Using AEST

Primary Country:

  • Australia

Key Facts about AEST:

  • ✓ Most populous Australian timezone
  • ✓ Major business centers
  • ✓ DST observed October-April
  • ✓ Major Cities: Sydney, Melbourne, Brisbane, Canberra
  • ✓ UTC Offset: +10:00 (+11:00 during AEDT)

PST to AEST Time Difference

Standard Time Difference:

PST is -18 hours behind

During Daylight Saving Time:

PST is -18 hours behind

Common Use Cases:

  • • Business meetings between United States and Australia
  • • International collaboration across timezones
  • • Scheduling calls and conferences

Frequently Asked Questions

Which countries are in PST time zone?

United States is the primary country using PST (-8:00). Other countries include: Canada, Mexico.

Which countries are in AEST time zone?

Australia is the primary country using AEST (+10:00).

How many hours is PST ahead of AEST?

PST is -18 hours behind AEST. During Daylight Saving Time, the difference is -18 hours.

Does United States observe Daylight Saving Time?

Yes, United States observes Daylight Saving Time. During DST, PST changes to PDT (Pacific Daylight Time) with UTC offset of -7:00.