Does it account for Daylight Saving Time?

Yes, our converter uses the IANA timezone database, which includes all current DST rules for every timezone in the world.

UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks. All timezones are defined as offsets from UTC.

Can I compare multiple timezones at once?

Yes, you can add multiple cities or timezones and see the equivalent times side by side.

How many timezones are there in the world?

There are 38 distinct UTC offsets in use, ranging from UTC-12 to UTC+14. This includes half-hour (UTC+5:30 India, UTC+9:30 Australia) and 45-minute offsets (UTC+5:45 Nepal, UTC+8:45 Australia).

What is the International Date Line?

The International Date Line (IDL) runs roughly along the 180° meridian in the Pacific Ocean. When you cross it westward, you gain a day; crossing eastward, you lose a day.

Why do some timezones have 30 or 45 minute offsets?

Countries chose offsets that best matched their solar noon. India uses UTC+5:30 and Nepal uses UTC+5:45 because standard hourly offsets didn't align well with their geography.

Which country has the most timezones?

France has the most (12 timezones) due to overseas territories. Russia spans 11 timezones. The US has 6 (including Hawaii and Alaska).

AWST to PDT

-15h

AWST

AWSTSOURCE

UTC+08:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

PDT

UTC-07:00☀ DST active

HH09

MM00

(previous day)21:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

AWST

PDT

12:00 AM

9:00 AM-1

2:00 AM

11:00 AM-1

4:00 AM

1:00 PM-1

6:00 AM

3:00 PM-1

8:00 AM

5:00 PM-1

10:00 AM

7:00 PM-1

12:00 PM

9:00 PM-1

2:00 PM

11:00 PM-1

4:00 PM

1:00 AM

6:00 PM

3:00 AM

8:00 PM

5:00 AM

10:00 PM

7:00 AM

Green rows indicate typical business hours (9 AM - 5 PM)

AWST and PDT on the World Map

The map below highlights the AWST (Australian Western Standard Time) and PDT (Pacific Daylight Time) timezone regions across the globe.

AWST Zone

→

PDT Zone

Explore all world timezones interactively →

AWST – Australian Western Standard Time

UTC+08:00

Australian Western Standard Time (AWST) is the time zone for Western Australia, 8 hours ahead of UTC.

Countries in AWST

Australia (Western Australia)

Major Cities in AWST

PerthMandurahBunburyGeraldton

Key Facts about AWST

•Western Australia does not observe daylight saving time.
•Perth is the most isolated major city in the world.
•AWST is the same offset as China Standard Time and Singapore Time.

Daylight Saving:No – UTC+08:00 year-round

Learn more about AWST on Wikipedia

PDT – Pacific Daylight Time

UTC-07:00

Pacific Daylight Time (PDT) is the daylight saving offset on the US/Canada Pacific coast, 7 hours behind UTC.

Countries in PDT

United States (Pacific)Canada (British Columbia)Mexico (Baja California)

Major Cities in PDT

Los AngelesSan FranciscoSeattleVancouverPortland

Key Facts about PDT

•PDT aligns with MST at UTC-07:00.
•Tech company earnings calls often reference PDT/PST times.

Daylight Saving:Yes – switches to PST

Learn more about PDT on Wikipedia

AWST to PDT Time Difference – Complete Guide

AWST runs on Australian Western Standard Time (AWST) at UTC+08:00. PDT runs on Pacific Daylight Time (PDT) at UTC-07:00. That puts AWST 15 hours behind PDT — a difference of -15h at the current offsets.

In practice, when it is 9:00 AM in AWST it is 6:00 PM in PDT on the previous day. Midnight in AWST is 9:00 AM in PDT. Neither zone observes daylight saving time, so the offset between them stays constant all year.

AWST to PDT time conversion table

AWST (AWST)	PDT (PDT)	Day
12:00 AM	9:00 AM	previous day
6:00 AM	3:00 PM	previous day
7:00 AM	4:00 PM	previous day
8:00 AM	5:00 PM	previous day
9:00 AM	6:00 PM	previous day
12:00 PM	9:00 PM	previous day
3:00 PM	12:00 AM	same day
5:00 PM	2:00 AM	same day
6:00 PM	3:00 AM	same day
9:00 PM	6:00 AM	same day

Why people convert AWST to PDT time

Scheduling a call from AWST to PDT: a 10:00 AM start in AWST lands at 7:00 PM in PDT the previous day, so you can confirm the slot without doing the arithmetic yourself.
Handling a -15h gap: AWST and PDT 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 PDT is 6:00 PM in AWST.
Coordinating a AWST-based team with PDT contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.

Always state the zone abbreviation, not just the hour. "3:00 PM AWST" is unambiguous; "3 PM" across a -15h gap is not.
With a -15h gap there is no shared 9-to-5 window, so alternate the early start: one week AWST takes the early slot, the next week PDT does.

About AWST (Australian Western Standard Time)

Australian Western Standard Time (AWST) is used in Western Australia. WA does not observe daylight saving time, having rejected it in multiple referendums. Perth is the most remote major city in the world.

About PDT (Pacific Daylight Time)

Pacific Daylight Time (PDT) is observed from March to November on the Pacific coast. During PDT, the west coast is 7 hours behind UTC and only 2 hours behind the east coast's EDT.

Best time to call between AWST and PDT

With a -15h offset there is no overlap inside a normal 9 AM – 5 PM day. PDT opens at 9:00 AM PDT, which is 6:00 PM in AWST, so real-time calls need an early-morning or late-evening slot on one side.

Business hours overlap

AWST and PDT have no shared working hours because of the -15h gap. Teams need to alternate early starts or rely on asynchronous handovers.

AWST is 15 hours behind PDT (AWST UTC+08:00 → PDT UTC-07:00). 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

AWST

Does not observe DST

PDT

☀ Currently in DST

Standard: UTC-08:00 · DST: UTC-07:00

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:

⏳

History of Timekeeping

From sundials to atomic clocks - 5000 years of measuring time

🌍

How Time Zones Work

UTC, offsets, and why zones don't follow straight lines

☀️

Daylight Saving Time

DST dates, which countries observe it, and the ongoing debate

Frequently Asked Questions

What is the time difference between AWST and PDT?

AWST (AWST, UTC+08:00) is 15 hours behind PDT (PDT, UTC-07:00). The gap is currently -15h.

How do I convert AWST time to PDT time?

Add -15h to AWST local time. For example, 9:00 AM in AWST is 6:00 PM in PDT (previous day).

What time is it in PDT right now?

PDT uses PDT at UTC-07:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -15h offset from AWST.