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.

SGT to COT

-13h

SGT

SGTSOURCE

UTC+08:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

COT

UTC-05:00

HH11

MM00

(previous day)23:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

SGT

COT

12:00 AM

11:00 AM-1

2:00 AM

1:00 PM-1

4:00 AM

3:00 PM-1

6:00 AM

5:00 PM-1

8:00 AM

7:00 PM-1

10:00 AM

9:00 PM-1

12:00 PM

11:00 PM-1

2:00 PM

1:00 AM

4:00 PM

3:00 AM

6:00 PM

5:00 AM

8:00 PM

7:00 AM

10:00 PM

9:00 AM

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

SGT and COT on the World Map

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

SGT Zone

→

COT Zone

Explore all world timezones interactively →

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

COT – Colombia Time

UTC-05:00

Colombia Time (COT) is the standard time for Colombia, 5 hours behind UTC.

Countries in COT

Colombia

Major Cities in COT

BogotáMedellínCaliBarranquillaCartagena

Key Facts about COT

•Colombia does not observe daylight saving time.
•COT is the same offset as EST (UTC-05:00).
•Bogotá sits at 2,640m elevation, making it one of the highest capital cities.

Daylight Saving:No – UTC-05:00 year-round

Learn more about COT on Wikipedia

Understanding the -13h Gap: SGT vs COT

SGT runs on Singapore Standard Time (SGT) at UTC+08:00. COT runs on Colombia Time (COT) at UTC-05:00. That puts SGT 13 hours behind COT — a difference of -13h at the current offsets.

In practice, when it is 9:00 AM in SGT it is 8:00 PM in COT on the previous day. Midnight in SGT is 11:00 AM in COT. Neither zone observes daylight saving time, so the offset between them stays constant all year.

SGT to COT time conversion table

SGT (SGT)	COT (COT)	Day
12:00 AM	11:00 AM	previous day
6:00 AM	5:00 PM	previous day
7:00 AM	6:00 PM	previous day
8:00 AM	7:00 PM	previous day
9:00 AM	8:00 PM	previous day
12:00 PM	11:00 PM	previous day
3:00 PM	2:00 AM	same day
5:00 PM	4:00 AM	same day
6:00 PM	5:00 AM	same day
9:00 PM	8:00 AM	same day

Why people convert SGT to COT time

Scheduling a call from SGT to COT: a 10:00 AM start in SGT lands at 9:00 PM in COT the previous day, so you can confirm the slot without doing the arithmetic yourself.
Handling a -13h gap: SGT and COT 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 COT is 8:00 PM in SGT.
Booking travel or deliveries: tracking COT local time against SGT keeps pickup windows and arrival estimates honest across the -13h offset.

Always state the zone abbreviation, not just the hour. "3:00 PM SGT" is unambiguous; "3 PM" across a -13h gap is not.
With a -13h gap there is no shared 9-to-5 window, so alternate the early start: one week SGT takes the early slot, the next week COT does.

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.

About COT (Colombia Time)

Colombia Time (COT) is used throughout Colombia. Colombia does not observe daylight saving time. COT shares the same offset as EST (UTC-05:00). Bogotá, the capital, is one of the largest cities in South America.

Best time to call between SGT and COT

With a -13h offset there is no overlap inside a normal 9 AM – 5 PM day. COT opens at 9:00 AM COT, which is 8:00 PM in SGT, so real-time calls need an early-morning or late-evening slot on one side.

Business hours overlap

SGT and COT have no shared working hours because of the -13h gap. Teams need to alternate early starts or rely on asynchronous handovers.

SGT is 13 hours behind COT (SGT UTC+08:00 → COT UTC-05:00). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.

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 SGT and COT?

SGT (SGT, UTC+08:00) is 13 hours behind COT (COT, UTC-05:00). The gap is currently -13h.

How do I convert SGT time to COT time?

Add -13h to SGT local time. For example, 9:00 AM in SGT is 8:00 PM in COT (previous day).

What time is it in COT right now?

COT uses COT at UTC-05:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -13h offset from SGT.