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.

Delhi to COT

-10h 30m

Delhi

ISTSOURCE

India · UTC+05:30

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

COT

UTC-05:00

HH01

MM30

01:30 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Delhi

COT

12:00 AM

1:30 PM-1

2:00 AM

3:30 PM-1

4:00 AM

5:30 PM-1

6:00 AM

7:30 PM-1

8:00 AM

9:30 PM-1

10:00 AM

11:30 PM-1

12:00 PM

1:30 AM

2:00 PM

3:30 AM

4:00 PM

5:30 AM

6:00 PM

7:30 AM

8:00 PM

9:30 AM

10:00 PM

11:30 AM

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

IST and COT on the World Map

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

IST Zone

→

COT 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

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

About Delhi

Wikipedia

Delhi operates on India Standard Time (IST), UTC+5:30. As India's capital, Delhi time is synchronized with Mumbai and India's National Stock Exchange.

Population:11 million

Metro:32.9 million

Business Hours:9:30 AM - 5:30 PM IST

Currency:INR (₹)

Stock Exchange:NSE (National Stock Exchange)

Key Landmarks

India GateRed FortQutub MinarLotus TempleHumayun's Tomb

Did You Know?

Delhi serves as India's political capital while Mumbai is the financial capital.

Learn more about IST timezone →

Delhi vs COT: Offsets, DST and Best Call Times

Delhi runs on India Standard Time (IST) at UTC+05:30. COT runs on Colombia Time (COT) at UTC-05:00. That puts Delhi 10 hours 30 minutes behind COT — a difference of -10h 30m at the current offsets.

In practice, when it is 9:00 AM in Delhi it is 10:30 PM in COT on the previous day. Midnight in Delhi is 1:30 PM in COT. Neither zone observes daylight saving time, so the offset between them stays constant all year.

Delhi to COT time conversion table

Delhi (IST)	COT (COT)	Day
12:00 AM	1:30 PM	previous day
6:00 AM	7:30 PM	previous day
7:00 AM	8:30 PM	previous day
8:00 AM	9:30 PM	previous day
9:00 AM	10:30 PM	previous day
12:00 PM	1:30 AM	same day
3:00 PM	4:30 AM	same day
5:00 PM	6:30 AM	same day
6:00 PM	7:30 AM	same day
9:00 PM	10:30 AM	same day

Why people convert Delhi to COT time

Scheduling a call from Delhi to COT: a 10:00 AM start in Delhi lands at 11:30 PM in COT the previous day, so you can confirm the slot without doing the arithmetic yourself.
Handling a -10h 30m gap: Delhi 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 10:30 PM in Delhi.
Booking travel or deliveries: tracking COT local time against Delhi keeps pickup windows and arrival estimates honest across the -10h 30m offset.

Always state the zone abbreviation, not just the hour. "3:00 PM IST" is unambiguous; "3 PM" across a -10h 30m gap is not.
With a -10h 30m gap there is no shared 9-to-5 window, so alternate the early start: one week Delhi takes the early slot, the next week COT does.

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 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 Delhi and COT

With a -10h 30m offset there is no overlap inside a normal 9 AM – 5 PM day. COT opens at 9:00 AM COT, which is 10:30 PM in Delhi, so real-time calls need an early-morning or late-evening slot on one side.

Business hours overlap

Delhi and COT have no shared working hours because of the -10h 30m gap. Teams need to alternate early starts or rely on asynchronous handovers.

Delhi is 10 hours 30 minutes behind COT (IST UTC+05:30 → 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 Delhi and COT?

Delhi (IST, UTC+05:30) is 10 hours 30 minutes behind COT (COT, UTC-05:00). The gap is currently -10h 30m.

How do I convert Delhi time to COT time?

Add -10h 30m to Delhi local time. For example, 9:00 AM in Delhi is 10:30 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 -10h 30m offset from Delhi.

What is the best time to call COT from Delhi?

There is no shared working-hours window because of the -10h 30m gap. The closest option is 1:00 PM in Delhi, which is 2:30 AM in COT.

Which is behind, Delhi or COT?

Delhi is 10 hours 30 minutes behind COT. When it is 12:00 PM in Delhi it is 1:30 AM in COT.

Do Delhi and COT use different time zones?

Delhi (India) uses IST at UTC+05:30, while COT uses COT at UTC-05:00. The IANA identifiers are Asia/Kolkata and America/Bogota.

Does daylight saving time affect the Delhi–COT difference?

Neither zone observes daylight saving time, so the -10h 30m offset between Delhi and COT is fixed all year.

Which other cities share Delhi's time zone?

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

Which countries use IST, Delhi's zone?

IST is used in India, Sri Lanka.

Is there a day difference between Delhi and COT?

Not normally. The -10h 30m gap only pushes the date over the previous day.

What is the time difference between Delhi and COT?

COT is -10h 30m from Delhi.

What timezone is Delhi in?

Delhi operates on India Standard Time (IST), UTC+5:30. As India's capital, Delhi time is synchronized with Mumbai and India's National Stock Exchange.