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).

Santiago to HST

-7h

Santiago

CLSTSOURCE

Chile · UTC-03:00☀ DST active

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

HST

UTC-10:00

HH05

MM00

05:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Santiago

HST

12:00 AM

5:00 PM-1

2:00 AM

7:00 PM-1

4:00 AM

9:00 PM-1

6:00 AM

11:00 PM-1

8:00 AM

1:00 AM

10:00 AM

3:00 AM

12:00 PM

5:00 AM

2:00 PM

7:00 AM

4:00 PM

9:00 AM

6:00 PM

11:00 AM

8:00 PM

1:00 PM

10:00 PM

3:00 PM

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

CLST and HST on the World Map

The map below highlights the CLST (Chile Standard Time) and HST (Hawaii Standard Time) timezone regions across the globe.

CLST Zone

→

HST 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

HST – Hawaii Standard Time

UTC-10:00

Hawaii Standard Time (HST) is the time zone for the Hawaiian Islands, 10 hours behind UTC.

Countries in HST

United States (Hawaii)

Major Cities in HST

HonoluluHiloKailuaPearl CityKapolei

Key Facts about HST

•Hawaii does not observe daylight saving time.
•HST is 5 hours behind EST in winter and 6 hours behind EDT in summer.
•Hawaii is one of only two US states that don't observe DST (the other is Arizona).

Daylight Saving:No – UTC-10:00 year-round

Learn more about HST on Wikipedia

Everything You Need to Know About Santiago and HST Time

Santiago runs on Chile Summer Time (CLST) at UTC-03:00, currently observing daylight saving time. HST runs on Hawaii Standard Time (HST) at UTC-10:00. That puts Santiago 7 hours behind HST — a difference of -7h at the current offsets.

In practice, when it is 9:00 AM in Santiago it is 2:00 AM in HST. Midnight in Santiago is 5:00 PM in HST.Santiago observes daylight saving time while HST does not, so the gap narrows or widens by an hour part of the year.

Santiago to HST time conversion table

Santiago (CLST)	HST (HST)	Day
12:00 AM	5:00 PM	previous day
6:00 AM	11:00 PM	previous day
7:00 AM	12:00 AM	same day
8:00 AM	1:00 AM	same day
9:00 AM	2:00 AM	same day
12:00 PM	5:00 AM	same day
3:00 PM	8:00 AM	same day
5:00 PM	10:00 AM	same day
6:00 PM	11:00 AM	same day
9:00 PM	2:00 PM	same day

Why people convert Santiago to HST time

Scheduling a call from Santiago to HST: a 10:00 AM start in Santiago lands at 3:00 AM in HST, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both Santiago and HST are inside the 9-to-5 working day between 4:00 PM and 5:00 PM CLST time (9:00 AM–10:00 AM HST). That is roughly 1 hours of usable overlap.
Booking travel or deliveries: tracking HST local time against Santiago keeps pickup windows and arrival estimates honest across the -7h offset.

Always state the zone abbreviation, not just the hour. "3:00 PM CLST" is unambiguous; "3 PM" across a -7h gap is not.
Block 4:00 PM–5:00 PM CLST as the recurring meeting window if you work primarily from Santiago and need HST colleagues present.
Santiago: Clocks fall back on Sun, Apr 4, 2027. Re-check this page after that date because the offset changes and so does the -7h gap.

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 HST (Hawaii Standard Time)

Hawaii Standard Time (HST) is used in the state of Hawaii and does not observe daylight saving time. This makes HST one of the most consistent time zones in the US. The Hawaiian Islands are among the last places on Earth to see a new calendar day.

Best time to call between Santiago and HST

Both Santiago and HST sit inside the 9 AM – 5 PM working day between 4:00 PM–5:00 PM CLST, which is 9:00 AM–10:00 AM HST. That gives roughly 1 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

Santiago and HST overlap for only 60 minutes (4:00 PM–5:00 PM CLST), so meetings have to be booked precisely.

Santiago is 7 hours behind HST (CLST UTC-03:00 → HST UTC-10:00). The shared working window is 4:00 PM–5:00 PM CLST. Remember to re-check around daylight-saving transitions.

🕐 Daylight Saving Time Info

Santiago

☀ Currently in DST

Standard: UTC-04:00 · DST: UTC-03:00

Clocks fall back on Sun, Apr 4, 2027

HST

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 Santiago and HST?

Santiago (CLST, UTC-03:00) is 7 hours behind HST (HST, UTC-10:00). The gap is currently -7h.

How do I convert Santiago time to HST time?

Add -7h to Santiago local time. For example, 9:00 AM in Santiago is 2:00 AM in HST.

What time is it in HST right now?

HST uses HST at UTC-10:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -7h offset from Santiago.

What is the best time to call HST from Santiago?

Call between 4:00 PM and 5:00 PM CLST — that maps to 9:00 AM–10:00 AM HST and keeps both parties inside the working day.

Which is behind, Santiago or HST?

Santiago is 7 hours behind HST. When it is 12:00 PM in Santiago it is 5:00 AM in HST.

Do Santiago and HST use different time zones?

Santiago (Chile) uses CLST at UTC-03:00, while HST uses HST at UTC-10:00. The IANA identifiers are America/Santiago and Pacific/Honolulu.

Does daylight saving time affect the Santiago–HST difference?

Yes at the moment: Santiago is on daylight saving time and HST is not, so the -7h gap shifts by an hour when exactly one of them changes clocks.

Which other cities share Santiago's time zone?

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

Which countries use CLST, Santiago's zone?

CLST is used in Chile.

Is there a day difference between Santiago and HST?

Not normally. The -7h gap only pushes the date over the previous day.

What is the time difference between Santiago and HST?

HST is -7h from Santiago.

What timezone is Santiago in?

Santiago operates on its local timezone.

What timezone is HST in?

HST 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.