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.

Singapore to Colombo

-2h 30m

Singapore

SGTSOURCE

Singapore · UTC+08:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Colombo

IST

Sri Lanka · UTC+05:30

HH09

MM30

09:30 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Singapore

Colombo

12:00 AM

9:30 PM-1

2:00 AM

11:30 PM-1

4:00 AM

1:30 AM

6:00 AM

3:30 AM

8:00 AM

5:30 AM

10:00 AM

7:30 AM

12:00 PM

9:30 AM

2:00 PM

11:30 AM

4:00 PM

1:30 PM

6:00 PM

3:30 PM

8:00 PM

5:30 PM

10:00 PM

7:30 PM

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

SGT and IST on the World Map

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

SGT Zone

→

IST 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

IST – India Standard Time

UTC+05:30

India Standard Time (IST) is the time zone for India and Sri Lanka, 5 hours and 30 minutes ahead of UTC.

Countries in IST

IndiaSri Lanka

Major Cities in IST

MumbaiDelhiBangaloreKolkataChennaiHyderabadPuneAhmedabadColomboJaipurLucknowSurat

Key Facts about IST

•India is 10 hours 30 minutes ahead of EST and 5 hours 30 minutes ahead of GMT.
•India uses a single time zone despite spanning 30° of longitude.
•IST is one of only a handful of time zones with a 30-minute offset.
•IST is the most populous single time zone in the world with over 1.4 billion people.
•The Bombay Stock Exchange (BSE) and National Stock Exchange (NSE) operate on IST.

Daylight Saving:No – UTC+05:30 year-round

Learn more about IST on Wikipedia

About Singapore

Wikipedia

Singapore Standard Time (SGT) is 8 hours ahead of GMT. As Asia's leading financial hub, Singapore bridges business hours between Europe and Australia.

Population:5.5 million

Metro:5.9 million

Business Hours:9:00 AM - 6:00 PM SGT

Currency:SGD (S$)

Stock Exchange:SGX (Singapore Exchange)

Key Landmarks

Marina Bay SandsGardens by the BayMerlionSentosa IslandOrchard Road

Did You Know?

The city-state has the world's highest percentage of millionaires, with 1 in 6 households.

Learn more about SGT timezone →

About Colombo

Wikipedia

Colombo operates on Sri Lanka Time (SLST), UTC+5:30. Sharing India's timezone, Colombo is a key South Asian trade and tourism hub.

Population:752,000

Metro:5.6 million

Business Hours:9:00 AM - 5:00 PM IST

Currency:LKR (Rs)

Stock Exchange:CSE (Colombo Stock Exchange)

Key Landmarks

Galle Face GreenGangaramaya TempleColombo Lotus TowerIndependence SquareDutch Hospital

Did You Know?

Sri Lanka Standard Time (SLST) uses UTC+5:30, same offset as India.

Learn more about IST timezone →

Comparing Time Zones: Singapore and Colombo

Singapore runs on Singapore Standard Time (SGT) at UTC+08:00. Colombo runs on India Standard Time (IST) at UTC+05:30. That puts Singapore 2 hours 30 minutes behind Colombo — a difference of -2h 30m at the current offsets.

In practice, when it is 9:00 AM in Singapore it is 6:30 AM in Colombo. Midnight in Singapore is 9:30 PM in Colombo. Neither zone observes daylight saving time, so the offset between them stays constant all year.

Singapore to Colombo time conversion table

Singapore (SGT)	Colombo (IST)	Day
12:00 AM	9:30 PM	previous day
6:00 AM	3:30 AM	same day
7:00 AM	4:30 AM	same day
8:00 AM	5:30 AM	same day
9:00 AM	6:30 AM	same day
12:00 PM	9:30 AM	same day
3:00 PM	12:30 PM	same day
5:00 PM	2:30 PM	same day
6:00 PM	3:30 PM	same day
9:00 PM	6:30 PM	same day

Why people convert Singapore to Colombo time

Scheduling a call from Singapore to Colombo: a 10:00 AM start in Singapore lands at 7:30 AM in Colombo, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both Singapore and Colombo are inside the 9-to-5 working day between 11:30 AM and 5:00 PM SGT time (9:00 AM–2:30 PM IST). That is roughly 5 hours 30 minutes of usable overlap.
Booking travel or deliveries: tracking Colombo local time against Singapore keeps pickup windows and arrival estimates honest across the -2h 30m offset.

Always state the zone abbreviation, not just the hour. "3:00 PM SGT" is unambiguous; "3 PM" across a -2h 30m gap is not.
Block 11:30 AM–5:00 PM SGT as the recurring meeting window if you work primarily from Singapore and need Colombo colleagues present.

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 IST (India Standard Time)

India Standard Time (IST) is the time observed throughout India and Sri Lanka. It is based on the 82.5°E meridian, passing through Mirzapur in Uttar Pradesh. India uses a single time zone despite spanning roughly 30° of longitude, which has been debated. IST does not observe daylight saving time. India is the world's most populous country, making IST one of the most-used time zones globally. The IT outsourcing industry and call centers operate primarily on IST, making the EST-to-IST conversion one of the most searched timezone conversions.

Best time to call between Singapore and Colombo

Both Singapore and Colombo sit inside the 9 AM – 5 PM working day between 11:30 AM–5:00 PM SGT, which is 9:00 AM–2:30 PM IST. That gives roughly 5 hours and 30 minutes of shared time — the safest window for a live call or meeting.

Business hours overlap

Singapore and Colombo share 5 hours of working-hours overlap (11:30 AM–5:00 PM SGT), so scheduling a live meeting is straightforward.

Singapore is 2 hours 30 minutes behind Colombo (SGT UTC+08:00 → IST UTC+05:30). The shared working window is 11:30 AM–5:00 PM SGT. 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 Singapore and Colombo?

Singapore (SGT, UTC+08:00) is 2 hours 30 minutes behind Colombo (IST, UTC+05:30). The gap is currently -2h 30m.

How do I convert Singapore time to Colombo time?

Add -2h 30m to Singapore local time. For example, 9:00 AM in Singapore is 6:30 AM in Colombo.

What time is it in Colombo right now?

Colombo uses IST at UTC+05:30. Use the live converter at the top of this page — it updates in real time and already accounts for the -2h 30m offset from Singapore.

What is the best time to call Colombo from Singapore?

Call between 11:30 AM and 5:00 PM SGT — that maps to 9:00 AM–2:30 PM IST and keeps both parties inside the working day.

Which is behind, Singapore or Colombo?

Singapore is 2 hours 30 minutes behind Colombo. When it is 12:00 PM in Singapore it is 9:30 AM in Colombo.

Do Singapore and Colombo use different time zones?

Singapore (Singapore) uses SGT at UTC+08:00, while Colombo (Sri Lanka) uses IST at UTC+05:30. The IANA identifiers are Asia/Singapore and Asia/Colombo.

Does daylight saving time affect the Singapore–Colombo difference?

Neither zone observes daylight saving time, so the -2h 30m offset between Singapore and Colombo is fixed all year.

Which other cities share Singapore's time zone?

SGT also covers Singapore.

Which countries use SGT, Singapore's zone?

SGT is used in Singapore.

Is there a day difference between Singapore and Colombo?

Not normally. The -2h 30m gap only pushes the date over the previous day.

What is the time difference between Singapore and Colombo?

Colombo is -2h 30m from Singapore.

What timezone is Singapore in?

Singapore Standard Time (SGT) is 8 hours ahead of GMT. As Asia's leading financial hub, Singapore bridges business hours between Europe and Australia.

What timezone is Colombo in?

Colombo operates on Sri Lanka Time (SLST), UTC+5:30. Sharing India's timezone, Colombo is a key South Asian trade and tourism hub.

What are the business hours in Singapore?

Standard business hours in Singapore are 9:00 AM - 6:00 PM SGT.

What are the business hours in Colombo?

Standard business hours in Colombo are 9:00 AM - 5:00 PM IST.

What is the best time to schedule a call between Singapore and Colombo?

The best overlap for a call is when both cities are in business hours. Singapore works 9:00 AM - 6:00 PM SGT and Colombo works 9:00 AM - 5:00 PM IST (-2h 30m difference). Try scheduling during the overlapping window for maximum convenience.

What currencies are used in Singapore and Colombo?

Singapore uses SGD (S$) while Colombo uses LKR (Rs). Check current exchange rates when planning travel or business between these cities.

How do Singapore and Colombo compare in size?

Singapore has a population of approximately 5.5 million (metro: 5.9 million), while Colombo has approximately 752,000 (metro: 5.6 million).

What are the major landmarks in Singapore and Colombo?

Singapore is known for Marina Bay Sands, Gardens by the Bay, Merlion. Colombo is famous for Galle Face Green, Gangaramaya Temple, Colombo Lotus Tower.

Do Singapore and Colombo have stock exchanges?

Yes. Singapore has the SGX (Singapore Exchange) and Colombo has the CSE (Colombo Stock Exchange). The -2h 30m time difference affects trading hour overlaps between these exchanges.