Skip to main content

Convert India Standard Time to Colombia Time

Instantly convert India Standard Time (IST) to Colombia Time (COT) with our free online calculator.

Reviewed by Christopher FloiedUpdated

India Standard Time

10:50:51 AM

Wed, Jun 24 (IST)

Colombia Time

12:20:51 AM

Wed, Jun 24 (COT)

COT is -10.5 hours from IST

Convert a Specific Time

IST

24-Hour Comparison

ISTCOT
12:00 AM1.5:00 PM(-1d)
1:00 AM2.5:00 PM(-1d)
2:00 AM3.5:00 PM(-1d)
3:00 AM4.5:00 PM(-1d)
4:00 AM5.5:00 PM(-1d)
5:00 AM6.5:00 PM(-1d)
6:00 AM7.5:00 PM(-1d)
7:00 AM8.5:00 PM(-1d)
8:00 AM9.5:00 PM(-1d)
9:00 AM10.5:00 PM(-1d)
10:00 AM11.5:00 PM(-1d)
11:00 AM0.5:00 AM
12:00 PM1.5:00 AM
1:00 PM2.5:00 AM
2:00 PM3.5:00 AM
3:00 PM4.5:00 AM
4:00 PM5.5:00 AM
5:00 PM6.5:00 AM
6:00 PM7.5:00 AM
7:00 PM8.5:00 AM
8:00 PM9.5:00 AM
9:00 PM10.5:00 AM
10:00 PM11.5:00 AM
11:00 PM0.5:00 PM

How to Convert India Standard Time to Colombia Time

Formula

To convert India Standard Time (IST) to Colombia Time (COT): Convert IST to COT

About India Standard Time (IST)

India Standard Time (IST, IANA: Asia/Kolkata) is the civil time of the Republic of India and Sri Lanka, set at UTC+5:30 — one of the world's most populous 30-minute-offset time zones. India does not observe Daylight Saving Time per the Government of India directive (a brief DST trial in 1942-1945 during WWII was discontinued; subsequent proposals from 2010-2017 were rejected by the Indian Government citing minimal energy savings + agricultural sector disruption). IST is defined as the local mean solar time at 82.5°E longitude (passing through Shankargarh fort in Uttar Pradesh, with the reference clock at the National Physical Laboratory in New Delhi per the Indian Institute of Astrophysics). The 30-minute offset is preserved because India's east-west extent (68°E to 97°E) spans ~28° of longitude — approximately 2 hours of solar time — and the central meridian is most representative for a single unified zone. IST serves approximately 1.4 billion people in India + 22 million in Sri Lanka (Sri Lanka observes SLST = UTC+5:30, identical to IST). Major cities: Mumbai (12.5M), Delhi (16.8M, NCR 29M), Bengaluru (8.4M), Hyderabad (10M), Chennai (7M), Kolkata (4.5M), Ahmedabad (5.5M), Pune (3.1M). Affects: BSE/NSE stock exchanges, IPL Indian Premier League cricket schedules.

About Colombia Time (COT)

Colombia Time (COT, IANA: America/Bogota) is the official civil time of the Republic of Colombia, set at UTC-5:00 year-round. Colombia abolished Daylight Saving Time in 1993 after a brief experimental DST period (1992-1993), so COT is observed without seasonal change since then. COT serves approximately 52 million people across Colombia's 32 departments + Bogotá Capital District. Major cities: Bogotá (8M city, 11M metro — capital), Medellín (2.5M city, 4M metro), Cali (2.3M), Barranquilla (1.3M), Cartagena (1M), Cúcuta (700K), Bucaramanga (600K). COT is identical in offset to Eastern Standard Time (EST) US, Cuban Standard Time (CST-Cu), Peru Time (PET), and Ecuador Time (ECT). The San Andrés and Providencia archipelago in the Caribbean Sea (closer to Nicaragua than to mainland Colombia) also observes COT. Affects: Bolsa de Valores de Colombia (BVC) trading hours, Ecopetrol oil-pipeline operations, Café de Colombia harvest-season coordination, and Cartagena de Indias cruise-ship port arrivals scheduling.

More Timezones Conversions

Related Tools