COT to IST Converter & Meeting Planner
Quick answer: 9:00 AM COT = 7:30 PM IST (fixed -05:00 standard offset — not DST-adjusted). Use the interactive converter below for DST-aware local-time scheduling.
Planning a call or meeting between Colombia Time (COT) and Indian Standard Time (IST)? You need to account for the standard time difference. Indian Standard Time is normally 10.5 hours ahead of Colombia Time. Whether you are coordinating between teams in Bogotá and Medellín and Mumbai and New Delhi, our live tool has you covered. Use our interactive overlap studio below to find the perfect waking hours for both regions, taking into account any seasonal Daylight Saving Time (DST) changes.
24-Hour Conversion Table
Quick reference: 12:00 AM COT = 10:30 AM IST. The full 24-hour COT to IST table below uses fixed standard offsets for exact abbreviation searches.
Example: 3:00 PM COT = 1:30 AM IST (+1 day).
| COT Time | IST Time |
|---|---|
| 12:00 AM (00:00) | 10:30 AM (10:30) |
| 1:00 AM (01:00) | 11:30 AM (11:30) |
| 2:00 AM (02:00) | 12:30 PM (12:30) |
| 3:00 AM (03:00) | 1:30 PM (13:30) |
| 4:00 AM (04:00) | 2:30 PM (14:30) |
| 5:00 AM (05:00) | 3:30 PM (15:30) |
| 6:00 AM (06:00) | 4:30 PM (16:30) |
| 7:00 AM (07:00) | 5:30 PM (17:30) |
| 8:00 AM (08:00) | 6:30 PM (18:30) |
| 9:00 AM (09:00) | 7:30 PM (19:30) |
| 10:00 AM (10:00) | 8:30 PM (20:30) |
| 11:00 AM (11:00) | 9:30 PM (21:30) |
| 12:00 PM (12:00) | 10:30 PM (22:30) |
| 1:00 PM (13:00) | 11:30 PM (23:30) |
| 2:00 PM (14:00) | 12:30 AM (00:30)+1 day |
| 3:00 PM (15:00) | 1:30 AM (01:30)+1 day |
| 4:00 PM (16:00) | 2:30 AM (02:30)+1 day |
| 5:00 PM (17:00) | 3:30 AM (03:30)+1 day |
| 6:00 PM (18:00) | 4:30 AM (04:30)+1 day |
| 7:00 PM (19:00) | 5:30 AM (05:30)+1 day |
| 8:00 PM (20:00) | 6:30 AM (06:30)+1 day |
| 9:00 PM (21:00) | 7:30 AM (07:30)+1 day |
| 10:00 PM (22:00) | 8:30 AM (08:30)+1 day |
| 11:00 PM (23:00) | 9:30 AM (09:30)+1 day |
Best time to call Mumbai from Bogotá
For most work calls, compare the normal business day in Bogotá (COT) with the business day in Mumbai (IST). COT commonly covers South America, while IST is mainly associated with South Asia.
⚠️ Note: 2026-07-05 is not a normal workday in one or both regions based on their configured calendar. The overlap below should be treated as a reference, not a guaranteed office-hours window.
⚠️ There is no clean same-day business-hours overlap on 2026-07-05. A practical compromise is around 11:00 PM COT, which reaches 9:30 AM IST near the start of their workday.
- DST Safety: Neither COT nor IST uses Daylight Saving Time in our dataset, making business-hour relationships stable year-round.
- Colombia Stock Exchange (BVC): 09:30-16:00 local time in Bogotá.
- Bombay Stock Exchange (BSE): 09:15-15:30 local time in Mumbai.
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Frequently Asked Questions
What is the time difference between COT and IST?
During standard time, Indian Standard Time is 10.5 hours ahead of Colombia Time.
Does Colombia observe Daylight Saving Time?
Colombia does not observe Daylight Saving Time and has no current plans to do so. COT remains fixed at UTC-05:00 every day of the year, providing a consistent, unchanging reference point for international business and logistics.
How does Colombia Time (COT) align with the US?
COT (UTC-05:00) matches US Eastern Standard Time (EST) exactly during the Northern Hemisphere winter, creating zero offset between Bogotá and New York. During US Daylight Saving Time in summer, COT runs one hour behind Eastern Daylight Time (EDT, UTC-04:00), maintaining a gap narrow enough that a full shared workday remains easily achievable — one of the tightest nearshore alignments available from South America.
Does India observe Daylight Saving Time (DST)?
India does not observe Daylight Saving Time and has not done so since 1945. IST remains fixed at UTC+5:30 every day of the year, meaning the offset between India and any DST-observing country shifts by one hour twice annually when those countries change their clocks.
Why does IST have a 30-minute offset?
India chose the 82.5° East meridian — which passes through Mirzapur in Uttar Pradesh — as its central reference longitude, as it bisects the subcontinent geographically. That meridian sits exactly 5 hours and 30 minutes ahead of the Prime Meridian in Greenwich, producing the UTC+5:30 offset that has defined IST since 1906.