COT to UTC Time Converter
UTC is 5 hours ahead of COT. COT is UTC-5:00, and UTC is the zero point, UTC±00:00.
Best Time to Call Between COT and UTC
Both zones are inside normal business hours between 9:00 AM and 12:00 PM COT — that's 2:00 PM to 5:00 PM UTC. That's a 3-hour window.
both at work COT only UTC only neither — hours along the strip are COT.
Common Times Converted
COT on the left, UTC on the right.
COT to UTC: Full 24-Hour Conversion Table
Shaded rows are working hours; the darker shade marks the hours when both zones are at work.
| COT | UTC | Working hours |
|---|---|---|
| 12:00 AM | 5:00 AM | — |
| 1:00 AM | 6:00 AM | — |
| 2:00 AM | 7:00 AM | — |
| 3:00 AM | 8:00 AM | — |
| 4:00 AM | 9:00 AM | UTC only |
| 5:00 AM | 10:00 AM | UTC only |
| 6:00 AM | 11:00 AM | UTC only |
| 7:00 AM | 12:00 PM | UTC only |
| 8:00 AM | 1:00 PM | UTC only |
| 9:00 AM | 2:00 PM | Both zones |
| 10:00 AM | 3:00 PM | Both zones |
| 11:00 AM | 4:00 PM | Both zones |
| 12:00 PM | 5:00 PM | COT only |
| 1:00 PM | 6:00 PM | COT only |
| 2:00 PM | 7:00 PM | COT only |
| 3:00 PM | 8:00 PM | COT only |
| 4:00 PM | 9:00 PM | COT only |
| 5:00 PM | 10:00 PM | — |
| 6:00 PM | 11:00 PM | — |
| 7:00 PM | 12:00 AM next day | — |
| 8:00 PM | 1:00 AM next day | — |
| 9:00 PM | 2:00 AM next day | — |
| 10:00 PM | 3:00 AM next day | — |
| 11:00 PM | 4:00 AM next day | — |
What COT and UTC Actually Are
COT — Colombia Time
Bogotá, Medellín, Cali, Barranquilla. Standing at UTC-5:00 as written, and the region does not change its clocks, so that offset holds all year.
Colombia briefly tried daylight saving during the energy crisis of 1992-93 and has not repeated it.
UTC — Coordinated Universal Time
The global reference standard. Aviation, computing and science run on it. Standing at UTC as written, and the region does not change its clocks, so that offset holds all year.
UTC is not a place. It is a computed standard, kept within a second of mean solar time at Greenwich by atomic clocks, and it is the reference every other zone is defined against.
What This Means in Practice
A gap you can rely on
Neither region changes its clocks, so this difference holds every day of the year. A recurring meeting booked once stays correct — worth knowing, because most cross-border pairs cannot say that.
Major Cities in Each Zone
Cities on COT
Frequently Asked Questions
What is the time difference between COT and UTC?
UTC is 5 hours ahead of COT.
What is 9:00 AM COT in UTC?
9:00 AM COT is 2:00 PM UTC.
What are the best hours to schedule a call between COT and UTC?
Between 9:00 AM and 12:00 PM COT, which is 2:00 PM to 5:00 PM UTC. Both sides are inside normal business hours through that window.
Does the difference between COT and UTC change during the year?
No. Neither region changes its clocks, so this gap is fixed all year round.