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 Portugal

+4h

Santiago

CLSTSOURCE

Chile · UTC-03:00☀ DST active

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Portugal

WEST

UTC+01:00☀ DST active

HH04

MM00

16:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Santiago

Portugal

12:00 AM

4:00 AM

2:00 AM

6:00 AM

4:00 AM

8:00 AM

6:00 AM

10:00 AM

8:00 AM

12:00 PM

10:00 AM

2:00 PM

12:00 PM

4:00 PM

2:00 PM

6:00 PM

4:00 PM

8:00 PM

6:00 PM

10:00 PM

8:00 PM

12:00 AM+1

10:00 PM

2:00 AM+1

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

CLST and WEST on the World Map

The map below highlights the CLST (Chile Standard Time) and WEST (Western European Time) timezone regions across the globe.

CLST Zone

→

WEST 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

WET – Western European Time

UTC+00:00

Western European Time (WET) is the time zone for Portugal, Morocco, and the Canary Islands, same as UTC+00:00.

Countries in WET

PortugalSpain (Canary Islands)MoroccoWestern Sahara

Major Cities in WET

LisbonPortoCasablancaLas PalmasFunchalRabat

Key Facts about WET

•Portugal is the only mainland European country in the WET time zone.
•The Canary Islands are on WET despite being part of Spain (which uses CET).
•WET is identical to GMT and UTC+00:00.

Daylight Saving:Yes – switches to WEST

Learn more about WET on Wikipedia

Understanding the +4h Gap: Santiago vs Portugal

Santiago runs on Chile Summer Time (CLST) at UTC-03:00, currently observing daylight saving time. Portugal runs on Western European Summer Time (WEST) at UTC+01:00, also currently on daylight saving time. That puts Santiago 4 hours ahead of Portugal — a difference of +4h at the current offsets.

In practice, when it is 9:00 AM in Santiago it is 1:00 PM in Portugal. Midnight in Santiago is 4:00 AM in Portugal. Because both zones shift for daylight saving, the gap between them only changes during the few weeks each year when their transition dates differ.

Santiago to Portugal time conversion table

Santiago (CLST)	Portugal (WEST)	Day
12:00 AM	4:00 AM	same day
6:00 AM	10:00 AM	same day
7:00 AM	11:00 AM	same day
8:00 AM	12:00 PM	same day
9:00 AM	1:00 PM	same day
12:00 PM	4:00 PM	same day
3:00 PM	7:00 PM	same day
5:00 PM	9:00 PM	same day
6:00 PM	10:00 PM	same day
9:00 PM	1:00 AM	next day

Why people convert Santiago to Portugal time

Scheduling a call from Santiago to Portugal: a 10:00 AM start in Santiago lands at 2:00 PM in Portugal, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both Santiago and Portugal are inside the 9-to-5 working day between 9:00 AM and 1:00 PM CLST time (1:00 PM–5:00 PM WEST). That is roughly 4 hours of usable overlap.
Booking travel or deliveries: tracking Portugal local time against Santiago keeps pickup windows and arrival estimates honest across the +4h offset.

Always state the zone abbreviation, not just the hour. "3:00 PM CLST" is unambiguous; "3 PM" across a +4h gap is not.
Block 9:00 AM–1:00 PM CLST as the recurring meeting window if you work primarily from Santiago and need Portugal 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 +4h gap.
Portugal: Clocks fall back on Sun, Oct 25, 2026. Any meeting series spanning that date will shift by an hour in local time.

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 WET (Western European Time)

Western European Time (WET) is used in Portugal, the Canary Islands (Spain), Morocco, and several other locations. It is equivalent to GMT/UTC. During summer, Portugal and the Canary Islands switch to WEST (Western European Summer Time, UTC+01:00).

Best time to call between Santiago and Portugal

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

Business hours overlap

Santiago and Portugal overlap for about 4 hours during the working day — enough for meetings if you avoid the edges of the window.

Santiago is 4 hours ahead of Portugal (CLST UTC-03:00 → WEST UTC+01:00). The shared working window is 9:00 AM–1:00 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

Portugal

☀ Currently in DST

Standard: UTC+00:00 · DST: UTC+01:00

Clocks fall back on Sun, Oct 25, 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 Santiago and Portugal?

Santiago (CLST, UTC-03:00) is 4 hours ahead of Portugal (WEST, UTC+01:00). The gap is currently +4h.

How do I convert Santiago time to Portugal time?

Add +4h to Santiago local time. For example, 9:00 AM in Santiago is 1:00 PM in Portugal.

What time is it in Portugal right now?

Portugal uses WEST at UTC+01:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +4h offset from Santiago.

What is the best time to call Portugal from Santiago?

Call between 9:00 AM and 1:00 PM CLST — that maps to 1:00 PM–5:00 PM WEST and keeps both parties inside the working day.

Which is ahead, Santiago or Portugal?

Santiago is 4 hours ahead of Portugal. When it is 12:00 PM in Santiago it is 4:00 PM in Portugal.

Do Santiago and Portugal use different time zones?

Santiago (Chile) uses CLST at UTC-03:00, while Portugal (Portugal) uses WEST at UTC+01:00. The IANA identifiers are America/Santiago and Europe/Lisbon.

Does daylight saving time affect the Santiago–Portugal difference?

Both zones observe DST, so the difference stays at +4h for most of the year and only changes during the weeks when their transition dates do not line up.

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 Portugal?

Not normally. The +4h gap only pushes the date over for late-evening times.

What is the time difference between Santiago and Portugal?

Portugal is +4h from Santiago.

What timezone is Santiago in?

Santiago operates on its local timezone.

What timezone is Portugal in?

Portugal 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.