Greenwich Mean Time to Colombia Time
Convert times between Greenwich Mean Time (GMT, UTC+0:00) and Colombia Time (COT, UTC-5:00). Colombia Time is 5 hours behind Greenwich Mean Time in standard time. During daylight saving time this difference changes to 6 hours.
UTC+0:00 / +1:00→UTC-5:00
Live timezone converterUTC Offset Reference
| Timezone | Abbreviation | Standard offset | DST offset | Country |
|---|---|---|---|---|
| Greenwich Mean Time | GMT / BST | UTC+0:00 | UTC+1:00 | United Kingdom |
| Colombia Time | COT | UTC-5:00 | — | Colombia |
* DST offset applies during summer months. Exact transition dates vary by year.
Standard Time Conversion (GMT → COT)
| Greenwich Mean Time | Colombia Time |
|---|---|
| 12:00 AM GMT | 7:00 PM (prev day) COT |
| 6:00 AM GMT | 1:00 AM COT |
| 9:00 AM GMT | 4:00 AM COT |
| 12:00 PM GMT | 7:00 AM COT |
| 3:00 PM GMT | 10:00 AM COT |
| 6:00 PM GMT | 1:00 PM COT |
| 9:00 PM GMT | 4:00 PM COT |
Summer (DST) Conversion (BST → COT)
| Greenwich Mean Time (summer) | Colombia Time (summer) |
|---|---|
| 12:00 AM BST | 6:00 PM (prev day) COT |
| 6:00 AM BST | 12:00 AM COT |
| 9:00 AM BST | 3:00 AM COT |
| 12:00 PM BST | 6:00 AM COT |
| 3:00 PM BST | 9:00 AM COT |
| 6:00 PM BST | 12:00 PM COT |
| 9:00 PM BST | 3:00 PM COT |
Daylight Saving Time (DST) Notes
- Greenwich Mean Time observes DST. Clocks advance 1 hour to BST (UTC+1:00) roughly from month 3 to 10.
- The offset difference shifts between 5h (standard) and 6h (DST season). Always verify the current offset using the live converter below.
Frequently Asked Questions
How do I convert GMT to COT?
Add (-5) hours to the GMT time to get COT. For example, 9:00 AM GMT = 4:00 AM COT.
What is the current UTC offset for Greenwich Mean Time?
Greenwich Mean Time is UTC+0:00 during standard time (GMT) and UTC+1:00 during summer daylight saving time (BST).
Is Colombia Time ahead or behind Greenwich Mean Time?
Colombia Time is 5 hours behind Greenwich Mean Time in standard time.
When is a good time to schedule a meeting between GMT and COT?
A good overlap window is around 3:00 PM GMT / 10:00 AM COT, which falls within business hours for both timezones.
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Need the exact current time?
Use the live ToolsHub timezone converter to see current times, DST status, and schedule across time zones.