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).

CLT to AWST

+12h

CLT

CLTSOURCE

UTC-03:00☀ DST active

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

AWST

UTC+08:00

HH12

MM00

(next day)00:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

CLT

AWST

12:00 AM

11:00 AM

2:00 AM

1:00 PM

4:00 AM

3:00 PM

6:00 AM

5:00 PM

8:00 AM

7:00 PM

10:00 AM

9:00 PM

12:00 PM

11:00 PM

2:00 PM

1:00 AM+1

4:00 PM

3:00 AM+1

6:00 PM

5:00 AM+1

8:00 PM

7:00 AM+1

10:00 PM

9:00 AM+1

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

CLT and AWST on the World Map

The map below highlights the CLT (Chile Standard Time) and AWST (Australian Western Standard Time) timezone regions across the globe.

CLT Zone

→

AWST Zone

Explore all world timezones interactively →

CLT – Chile Standard Time

UTC-04:00

Chile Standard Time (CLT) is the time zone for continental Chile, 4 hours behind UTC.

Countries in CLT

Chile

Major Cities in CLT

SantiagoValparaísoConcepciónViña del MarAntofagasta

Key Facts about CLT

•Chile observes daylight saving time, switching to CLST (UTC-03:00) in summer.
•Santiago is the largest city in Chile with over 6 million in the metro area.
•Chile spans over 4,300 km from north to south but uses one timezone.

Daylight Saving:Yes – switches to CLST

Learn more about CLT on Wikipedia

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

Time Conversion Guide: CLT to AWST

CLT runs on Chile Standard Time (CLT) at UTC-04:00. AWST runs on Australian Western Standard Time (AWST) at UTC+08:00. That puts CLT 12 hours ahead of AWST — a difference of +12h at the current offsets.

In practice, when it is 9:00 AM in CLT it is 9:00 PM in AWST. Midnight in CLT is 12:00 PM in AWST. Neither zone observes daylight saving time, so the offset between them stays constant all year.

CLT to AWST time conversion table

CLT (CLT)	AWST (AWST)	Day
12:00 AM	12:00 PM	same day
6:00 AM	6:00 PM	same day
7:00 AM	7:00 PM	same day
8:00 AM	8:00 PM	same day
9:00 AM	9:00 PM	same day
12:00 PM	12:00 AM	next day
3:00 PM	3:00 AM	next day
5:00 PM	5:00 AM	next day
6:00 PM	6:00 AM	next day
9:00 PM	9:00 AM	next day

Why people convert CLT to AWST time

Scheduling a call from CLT to AWST: a 10:00 AM start in CLT lands at 10:00 PM in AWST, so you can confirm the slot without doing the arithmetic yourself.
Handling a +12h gap: CLT and AWST 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 AWST is 9:00 PM in CLT.
Coordinating a CLT-based team with AWST 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 CLT" is unambiguous; "3 PM" across a +12h gap is not.
With a +12h gap there is no shared 9-to-5 window, so alternate the early start: one week CLT takes the early slot, the next week AWST does.

About CLT (Chile Standard Time)

Chile Standard Time (CLT) is the standard time in Chile. During summer months (October to March), Chile switches to Chile Summer Time (CLST, UTC-03:00). Chile is the longest north-south country in the world.

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.

Best time to call between CLT and AWST

With a +12h offset there is no overlap inside a normal 9 AM – 5 PM day. AWST opens at 9:00 AM AWST, which is 9:00 PM in CLT, so real-time calls need an early-morning or late-evening slot on one side.

Business hours overlap

CLT and AWST have no shared working hours because of the +12h gap. Teams need to alternate early starts or rely on asynchronous handovers.

CLT is 12 hours ahead of AWST (CLT UTC-04:00 → AWST UTC+08:00). 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

CLT

☀ Currently in DST

Standard: UTC-04:00 · DST: UTC-03:00

Clocks fall back on Sun, Apr 4, 2027

AWST

Does not observe DST

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 CLT and AWST?

CLT (CLT, UTC-04:00) is 12 hours ahead of AWST (AWST, UTC+08:00). The gap is currently +12h.

How do I convert CLT time to AWST time?

Add +12h to CLT local time. For example, 9:00 AM in CLT is 9:00 PM in AWST.

What time is it in AWST right now?

AWST uses AWST at UTC+08:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +12h offset from CLT.

What is the best time to call AWST from CLT?

There is no shared working-hours window because of the +12h gap. The closest option is 1:00 PM in CLT, which is 1:00 AM in AWST.

Which is ahead, CLT or AWST?

CLT is 12 hours ahead of AWST. When it is 12:00 PM in CLT it is 12:00 AM in AWST.

Does daylight saving time affect the CLT–AWST difference?

Neither zone observes daylight saving time, so the +12h offset between CLT and AWST is fixed all year.

Which other cities share CLT's time zone?

CLT also covers Santiago, Valparaíso, Concepción, Viña del Mar, Antofagasta.

Which countries use CLT, CLT's zone?

CLT is used in Chile.

Is there a day difference between CLT and AWST?

Sometimes. The +12h gap is large enough that 8:00 PM or later in CLT already falls on the next day in AWST.

What is the time difference between CLT and AWST?

AWST is +12h from CLT.

What timezone is CLT in?

CLT operates on its local timezone.

What timezone is AWST in?

AWST operates on its local timezone.

Which countries use CLT (Chile Standard Time)?

CLT is used in Chile.

Does CLT observe daylight saving time?

Yes, CLT switches to CLST during summer months.

What are some interesting facts about CLT?

Chile observes daylight saving time, switching to CLST (UTC-03:00) in summer. Santiago is the largest city in Chile with over 6 million in the metro area.