Does it handle Daylight Saving Time?

Yes, the tool automatically adjusts for Daylight Saving Time based on the specific date you select, ensuring accurate conversions year-round.

Can I add multiple cities?

Yes, you can add as many cities as you need to the dashboard to compare times across your entire global network simultaneously.

CLT to SGT

+12h

CLT

CLTSOURCE

UTC-03:00☀ DST active

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

SGT

UTC+08:00

HH12

MM00

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

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

CLT

SGT

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 SGT on the World Map

The map below highlights the CLT (Chile Standard Time) and SGT (Singapore Standard Time) timezone regions across the globe.

CLT Zone

→

SGT 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

SGT – Singapore Standard Time

UTC+08:00

Singapore Standard Time (SGT) is the time zone for Singapore, 8 hours ahead of UTC.

Countries in SGT

Singapore

Major Cities in SGT

Singapore

Key Facts about SGT

•Singapore uses UTC+08:00 despite being at about 104°E longitude (closer to UTC+07:00).
•Singapore does not observe daylight saving time.
•The Singapore Exchange (SGX) operates on SGT.

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

Learn more about SGT on Wikipedia

Everything You Need to Know About CLT and SGT Time

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

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

CLT to SGT time conversion table

CLT (CLT)	SGT (SGT)	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 SGT time

Scheduling a call from CLT to SGT: a 10:00 AM start in CLT lands at 10:00 PM in SGT, so you can confirm the slot without doing the arithmetic yourself.
Handling a +12h gap: CLT and SGT 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 SGT is 9:00 PM in CLT.
Keeping family and friends in sync: knowing that 8:00 PM in CLT is 8:00 AM in SGT makes it easy to avoid calling at 3 AM.

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 SGT 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 SGT (Singapore Standard Time)

Singapore Standard Time (SGT) is used in Singapore year-round. Singapore does not observe daylight saving time. Despite being geographically close to the UTC+07:00 zone, Singapore uses UTC+08:00 to align with major trading partners like China, Hong Kong, and Malaysia. Singapore is a major global financial hub.

Best time to call between CLT and SGT

With a +12h offset there is no overlap inside a normal 9 AM – 5 PM day. SGT opens at 9:00 AM SGT, 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 SGT 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 SGT (CLT UTC-04:00 → SGT 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

SGT

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 SGT?

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

How do I convert CLT time to SGT time?

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

What time is it in SGT right now?

SGT uses SGT 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 SGT 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 SGT.

Which is ahead, CLT or SGT?

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

Does daylight saving time affect the CLT–SGT difference?

Neither zone observes daylight saving time, so the +12h offset between CLT and SGT 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 SGT?

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

What is the time difference between CLT and SGT?

SGT is +12h from CLT.

What timezone is CLT in?

CLT operates on its local timezone.

What timezone is SGT in?

SGT 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.