New York to Colombo
+9h 30mNew York
EDTSOURCEColombo
ISTGreen rows indicate typical business hours (9 AM - 5 PM)
EDT and IST on the World Map
The map below highlights the EDT (Eastern Standard Time) and IST (India Standard Time) timezone regions across the globe.
EST – Eastern Standard Time
UTC-05:00Eastern Standard Time (EST) is the time zone for the eastern United States and Canada, 5 hours behind UTC.
- •EST is the most widely used time zone in the United States by population.
- •The New York Stock Exchange (NYSE) and NASDAQ operate on Eastern Time, opening at 9:30 AM EST.
- •23 US states are fully or partially in the Eastern Time Zone.
- •EST was established by the Standard Time Act of 1918.
- •Over 47% of the US population lives in the Eastern Time Zone.
IST – India Standard Time
UTC+05:30India Standard Time (IST) is the time zone for India and Sri Lanka, 5 hours and 30 minutes ahead of UTC.
- •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.
About New York
WikipediaNew York City, the financial capital of the world, operates on Eastern Time (EST/EDT). Home to Wall Street and the NYSE, NYC is crucial for global business coordination.
New York City has more than 800 languages spoken, making it the most linguistically diverse city in the world.
About Colombo
WikipediaColombo operates on Sri Lanka Time (SLST), UTC+5:30. Sharing India's timezone, Colombo is a key South Asian trade and tourism hub.
Sri Lanka Standard Time (SLST) uses UTC+5:30, same offset as India.
Comparing Time Zones: New York and Colombo
New York runs on Eastern Daylight Time (EDT) at UTC-04:00, currently observing daylight saving time. Colombo runs on India Standard Time (IST) at UTC+05:30. That puts New York 9 hours 30 minutes ahead of Colombo — a difference of +9h 30m at the current offsets.
In practice, when it is 9:00 AM in New York it is 6:30 PM in Colombo. Midnight in New York is 9:30 AM in Colombo.New York observes daylight saving time while Colombo does not, so the gap narrows or widens by an hour part of the year.
New York to Colombo time conversion table
| New York (EDT) | Colombo (IST) | Day |
|---|---|---|
| 12:00 AM | 9:30 AM | same day |
| 6:00 AM | 3:30 PM | same day |
| 7:00 AM | 4:30 PM | same day |
| 8:00 AM | 5:30 PM | same day |
| 9:00 AM | 6:30 PM | same day |
| 12:00 PM | 9:30 PM | same day |
| 3:00 PM | 12:30 AM | next day |
| 5:00 PM | 2:30 AM | next day |
| 6:00 PM | 3:30 AM | next day |
| 9:00 PM | 6:30 AM | next day |
Why people convert New York to Colombo time
- Scheduling a call from New York to Colombo: a 10:00 AM start in New York lands at 7:30 PM in Colombo, so you can confirm the slot without doing the arithmetic yourself.
- Handling a +9h 30m gap: New York and Colombo 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 Colombo is 6:30 PM in New York.
- Coordinating a New York-based team with Colombo contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.
- Always state the zone abbreviation, not just the hour. "3:00 PM EDT" is unambiguous; "3 PM" across a +9h 30m gap is not.
- With a +9h 30m gap there is no shared 9-to-5 window, so alternate the early start: one week New York takes the early slot, the next week Colombo does.
- New York: Clocks fall back on Sun, Nov 1, 2026. Re-check this page after that date because the offset changes and so does the +9h 30m gap.
About EST (Eastern Standard Time)
Eastern Standard Time (EST) is observed during the winter months in the eastern part of North America. It covers 23 US states and parts of Canada including Ontario and Quebec. EST is the most populous time zone in the United States, home to major financial centers like New York City and global organizations headquartered in Washington D.C. During daylight saving time (March–November), clocks shift to Eastern Daylight Time (EDT, UTC-04:00). The time zone also covers parts of the Caribbean and Central America including Panama, Jamaica, and the Cayman Islands.
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 New York and Colombo
With a +9h 30m offset there is no overlap inside a normal 9 AM – 5 PM day. Colombo opens at 9:00 AM IST, which is 6:30 PM in New York, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
New York and Colombo have no shared working hours because of the +9h 30m gap. Teams need to alternate early starts or rely on asynchronous handovers.
New York is 9 hours 30 minutes ahead of Colombo (EDT UTC-04:00 → IST UTC+05:30). 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
New York
☀ Currently in DST
Standard: UTC-05:00 · DST: UTC-04:00
Clocks fall back on Sun, Nov 1, 2026
Colombo
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:
Frequently Asked Questions
What is the time difference between New York and Colombo?
New York (EDT, UTC-04:00) is 9 hours 30 minutes ahead of Colombo (IST, UTC+05:30). The gap is currently +9h 30m.
How do I convert New York time to Colombo time?
Add +9h 30m to New York local time. For example, 9:00 AM in New York is 6:30 PM 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 +9h 30m offset from New York.
What is the best time to call Colombo from New York?
There is no shared working-hours window because of the +9h 30m gap. The closest option is 1:00 PM in New York, which is 10:30 PM in Colombo.
Which is ahead, New York or Colombo?
New York is 9 hours 30 minutes ahead of Colombo. When it is 12:00 PM in New York it is 9:30 PM in Colombo.
Do New York and Colombo use different time zones?
New York (USA) uses EDT at UTC-04:00, while Colombo (Sri Lanka) uses IST at UTC+05:30. The IANA identifiers are America/New_York and Asia/Colombo.
Does daylight saving time affect the New York–Colombo difference?
Yes at the moment: New York is on daylight saving time and Colombo is not, so the +9h 30m gap shifts by an hour when exactly one of them changes clocks.
Which other cities share New York's time zone?
EDT also covers New York City, Washington D.C., Miami, Toronto, Philadelphia, Atlanta, Boston, Montreal and 8 more.
Which countries use EDT, New York's zone?
EDT is used in United States (Eastern), Canada (Ontario, Quebec), Mexico (Quintana Roo), Panama, Jamaica, Cayman Islands, Haiti, Bahamas and 4 more.
Is there a day difference between New York and Colombo?
Not normally. The +9h 30m gap only pushes the date over for late-evening times.
What is the time difference between New York and Colombo?
Colombo is +9h 30m from New York.
What timezone is New York in?
New York City, the financial capital of the world, operates on Eastern Time (EST/EDT). Home to Wall Street and the NYSE, NYC is crucial for global business coordination.
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 New York?
Standard business hours in New York are 9:00 AM - 5:00 PM EST.
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 New York and Colombo?
The best overlap for a call is when both cities are in business hours. New York works 9:00 AM - 5:00 PM EST and Colombo works 9:00 AM - 5:00 PM IST (+9h 30m difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in New York and Colombo?
New York uses USD ($) while Colombo uses LKR (Rs). Check current exchange rates when planning travel or business between these cities.
How do New York and Colombo compare in size?
New York has a population of approximately 8.3 million (metro: 20.1 million), while Colombo has approximately 752,000 (metro: 5.6 million).
What are the major landmarks in New York and Colombo?
New York is known for Statue of Liberty, Empire State Building, Times Square. Colombo is famous for Galle Face Green, Gangaramaya Temple, Colombo Lotus Tower.
Do New York and Colombo have stock exchanges?
Yes. New York has the NYSE (New York Stock Exchange) and Colombo has the CSE (Colombo Stock Exchange). The +9h 30m time difference affects trading hour overlaps between these exchanges.
Which countries use EST (Eastern Standard Time)?
EST is used in United States (Eastern), Canada (Ontario, Quebec), Mexico (Quintana Roo), Panama, Jamaica, Cayman Islands, and 6 more countries.
Does EST observe daylight saving time?
Yes, EST switches to EDT during summer months.
What are some interesting facts about EST?
EST is the most widely used time zone in the United States by population. The New York Stock Exchange (NYSE) and NASDAQ operate on Eastern Time, opening at 9:30 AM EST.
Which cities are in the IST timezone?
Major cities in the IST timezone include Mumbai, Delhi, Bangalore, Kolkata, Chennai, Hyderabad, Pune, Ahmedabad.
What is the UTC offset for IST?
India Standard Time (IST) is at UTC+05:30.
What should I know about the IST timezone?
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.
When is it midnight in New York, what time is it in Colombo?
When it is 12:00 AM (midnight) in New York (EST), it is +9h 30m later in Colombo (IST).
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