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).

Sri Lanka to Singapore

+2h 30m

Sri Lanka

ISTSOURCE

UTC+05:30

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Singapore

SGT

Singapore · UTC+08:00

HH02

MM30

14:30 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Sri Lanka

Singapore

12:00 AM

2:30 AM

2:00 AM

4:30 AM

4:00 AM

6:30 AM

6:00 AM

8:30 AM

8:00 AM

10:30 AM

10:00 AM

12:30 PM

12:00 PM

2:30 PM

2:00 PM

4:30 PM

4:00 PM

6:30 PM

6:00 PM

8:30 PM

8:00 PM

10:30 PM

10:00 PM

12:30 AM+1

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

IST and SGT on the World Map

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

IST Zone

→

SGT Zone

Explore all world timezones interactively →

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

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

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 →

Understanding the +2h 30m Gap: Sri Lanka vs Singapore

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

In practice, when it is 9:00 AM in Sri Lanka it is 11:30 AM in Singapore. Midnight in Sri Lanka is 2:30 AM in Singapore. Neither zone observes daylight saving time, so the offset between them stays constant all year.

Sri Lanka to Singapore time conversion table

Sri Lanka (IST)	Singapore (SGT)	Day
12:00 AM	2:30 AM	same day
6:00 AM	8:30 AM	same day
7:00 AM	9:30 AM	same day
8:00 AM	10:30 AM	same day
9:00 AM	11:30 AM	same day
12:00 PM	2:30 PM	same day
3:00 PM	5:30 PM	same day
5:00 PM	7:30 PM	same day
6:00 PM	8:30 PM	same day
9:00 PM	11:30 PM	same day

Why people convert Sri Lanka to Singapore time

Scheduling a call from Sri Lanka to Singapore: a 10:00 AM start in Sri Lanka lands at 12:30 PM in Singapore, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both Sri Lanka and Singapore are inside the 9-to-5 working day between 9:00 AM and 2:30 PM IST time (11:30 AM–5:00 PM SGT). That is roughly 5 hours 30 minutes of usable overlap.
Booking travel or deliveries: tracking Singapore local time against Sri Lanka keeps pickup windows and arrival estimates honest across the +2h 30m offset.

Always state the zone abbreviation, not just the hour. "3:00 PM IST" is unambiguous; "3 PM" across a +2h 30m gap is not.
Block 9:00 AM–2:30 PM IST as the recurring meeting window if you work primarily from Sri Lanka and need Singapore colleagues present.

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.

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 Sri Lanka and Singapore

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

Business hours overlap

Sri Lanka and Singapore share 5 hours of working-hours overlap (9:00 AM–2:30 PM IST), so scheduling a live meeting is straightforward.

Sri Lanka is 2 hours 30 minutes ahead of Singapore (IST UTC+05:30 → SGT UTC+08:00). The shared working window is 9:00 AM–2:30 PM IST. 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 Sri Lanka and Singapore?

Sri Lanka (IST, UTC+05:30) is 2 hours 30 minutes ahead of Singapore (SGT, UTC+08:00). The gap is currently +2h 30m.

How do I convert Sri Lanka time to Singapore time?

Add +2h 30m to Sri Lanka local time. For example, 9:00 AM in Sri Lanka is 11:30 AM in Singapore.

What time is it in Singapore right now?

Singapore 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 +2h 30m offset from Sri Lanka.

What is the best time to call Singapore from Sri Lanka?

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

Which is ahead, Sri Lanka or Singapore?

Sri Lanka is 2 hours 30 minutes ahead of Singapore. When it is 12:00 PM in Sri Lanka it is 2:30 PM in Singapore.

Do Sri Lanka and Singapore use different time zones?

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

Does daylight saving time affect the Sri Lanka–Singapore difference?

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

Which other cities share Sri Lanka's time zone?

IST also covers Mumbai, Delhi, Bangalore, Kolkata, Chennai, Hyderabad, Pune, Ahmedabad and 4 more.

Which countries use IST, Sri Lanka's zone?

IST is used in India, Sri Lanka.

Is there a day difference between Sri Lanka and Singapore?

Not normally. The +2h 30m gap only pushes the date over for late-evening times.

What is the time difference between Sri Lanka and Singapore?

Singapore is +2h 30m from Sri Lanka.

What timezone is Sri Lanka in?

Sri Lanka operates on its local timezone.

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.