Colombia to London
+6hColombia
COTSOURCELondon
BSTGreen rows indicate typical business hours (9 AM - 5 PM)
COT and BST on the World Map
The map below highlights the COT (Colombia Time) and BST (Greenwich Mean Time) timezone regions across the globe.
COT – Colombia Time
UTC-05:00Colombia Time (COT) is the standard time for Colombia, 5 hours behind UTC.
- •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.
GMT – Greenwich Mean Time
UTC+00:00Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory in Greenwich, London. It is the same as UTC+00:00.
- •GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London.
- •The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
- •GMT and UTC are often used interchangeably, but UTC is based on atomic clocks.
- •Iceland uses GMT year-round and never observes daylight saving time.
- •The UK switches from GMT to BST (British Summer Time) in late March each year.
About London
WikipediaLondon, where Greenwich Mean Time (GMT) originates, is the world's leading financial center alongside New York. The city bridges European and American business hours.
Big Ben is actually the name of the bell inside the Elizabeth Tower, not the tower itself.
Time Conversion Guide: Colombia to London
Colombia runs on Colombia Standard Time (COT) at UTC-05:00. London runs on British Summer Time (BST) at UTC+01:00, also currently on daylight saving time. That puts Colombia 6 hours ahead of London — a difference of +6h at the current offsets.
In practice, when it is 9:00 AM in Colombia it is 3:00 PM in London. Midnight in Colombia is 6:00 AM in London.London observes daylight saving time while Colombia does not, so the gap narrows or widens by an hour part of the year.
Colombia to London time conversion table
| Colombia (COT) | London (BST) | Day |
|---|---|---|
| 12:00 AM | 6:00 AM | same day |
| 6:00 AM | 12:00 PM | same day |
| 7:00 AM | 1:00 PM | same day |
| 8:00 AM | 2:00 PM | same day |
| 9:00 AM | 3:00 PM | same day |
| 12:00 PM | 6:00 PM | same day |
| 3:00 PM | 9:00 PM | same day |
| 5:00 PM | 11:00 PM | same day |
| 6:00 PM | 12:00 AM | next day |
| 9:00 PM | 3:00 AM | next day |
Why people convert Colombia to London time
- Scheduling a call from Colombia to London: a 10:00 AM start in Colombia lands at 4:00 PM in London, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Colombia and London are inside the 9-to-5 working day between 9:00 AM and 11:00 AM COT time (3:00 PM–5:00 PM BST). That is roughly 2 hours of usable overlap.
- Coordinating a Colombia-based team with London contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.
- Always state the zone abbreviation, not just the hour. "3:00 PM COT" is unambiguous; "3 PM" across a +6h gap is not.
- Block 9:00 AM–11:00 AM COT as the recurring meeting window if you work primarily from Colombia and need London colleagues present.
- London: Clocks fall back on Sun, Oct 25, 2026. Any meeting series spanning that date will shift by an hour in local time.
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.
About GMT (Greenwich Mean Time)
Greenwich Mean Time (GMT) is the clock time at the Royal Observatory in Greenwich, London, which sits on the Prime Meridian (0° longitude). GMT serves as the reference point from which all other time zones are calculated. The United Kingdom uses GMT during winter months and switches to British Summer Time (BST, UTC+01:00) from late March to late October. Several West African nations use GMT year-round. GMT is often used interchangeably with UTC (Coordinated Universal Time), although technically they are different – UTC is based on atomic clocks while GMT is based on Earth's rotation.
Best time to call between Colombia and London
Both Colombia and London sit inside the 9 AM – 5 PM working day between 9:00 AM–11:00 AM COT, which is 3:00 PM–5:00 PM BST. That gives roughly 2 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Colombia and London overlap for about 2 hours during the working day — enough for meetings if you avoid the edges of the window.
Colombia is 6 hours ahead of London (COT UTC-05:00 → BST UTC+01:00). The shared working window is 9:00 AM–11:00 AM COT. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
Colombia
Does not observe DST
London
☀ Currently in DST
Standard: UTC+00:00 · DST: UTC+01:00
Clocks fall back on Sun, Oct 25, 2026
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between Colombia and London?
Colombia (COT, UTC-05:00) is 6 hours ahead of London (BST, UTC+01:00). The gap is currently +6h.
How do I convert Colombia time to London time?
Add +6h to Colombia local time. For example, 9:00 AM in Colombia is 3:00 PM in London.
What time is it in London right now?
London uses BST at UTC+01:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +6h offset from Colombia.
What is the best time to call London from Colombia?
Call between 9:00 AM and 11:00 AM COT — that maps to 3:00 PM–5:00 PM BST and keeps both parties inside the working day.
Which is ahead, Colombia or London?
Colombia is 6 hours ahead of London. When it is 12:00 PM in Colombia it is 6:00 PM in London.
Do Colombia and London use different time zones?
Colombia (Colombia) uses COT at UTC-05:00, while London (UK) uses BST at UTC+01:00. The IANA identifiers are America/Bogota and Europe/London.
Does daylight saving time affect the Colombia–London difference?
Yes at the moment: London is on daylight saving time and Colombia is not, so the +6h gap shifts by an hour when exactly one of them changes clocks.
Which other cities share Colombia's time zone?
COT also covers Bogotá, Medellín, Cali, Barranquilla, Cartagena.
Which countries use COT, Colombia's zone?
COT is used in Colombia.
Is there a day difference between Colombia and London?
Not normally. The +6h gap only pushes the date over for late-evening times.
What is the time difference between Colombia and London?
London is +6h from Colombia.
What timezone is Colombia in?
Colombia operates on its local timezone.
What timezone is London in?
London, where Greenwich Mean Time (GMT) originates, is the world's leading financial center alongside New York. The city bridges European and American business hours.
What are the business hours in London?
Standard business hours in London are 9:00 AM - 5:00 PM GMT.
Which countries use COT (Colombia Time)?
COT is used in Colombia.
Does COT observe daylight saving time?
No, COT does not observe daylight saving time and remains at UTC-05:00 year-round.
What are some interesting facts about COT?
Colombia does not observe daylight saving time. COT is the same offset as EST (UTC-05:00).
Which cities are in the GMT timezone?
Major cities in the GMT timezone include London, Dublin, Lisbon, Accra, Reykjavik, Edinburgh, Casablanca, Dakar.
What is the UTC offset for GMT?
Greenwich Mean Time (GMT) is at UTC+00:00. During daylight saving time, it shifts to BST.
What should I know about the GMT timezone?
GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London. The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
When is it midnight in Colombia, what time is it in London?
When it is 12:00 AM (midnight) in Colombia (COT), it is +6h later in London (GMT).
Related Developer Tools
Explore more tools that work great with timezone conversions for international teams:
Related Timezone Conversions
More Colombia time conversions
- colombia to bogota
- colombia to cot
- colombia to new york
- colombia to dubai
- colombia to tokyo
- colombia to singapore
- colombia to sydney
- colombia to los angeles
- colombia to paris
- colombia to delhi
- colombia to mumbai
- colombia to berlin
- colombia to hong kong
- colombia to toronto
- colombia to kathmandu
- new york to colombia
- london to colombia
- dubai to colombia
- tokyo to colombia
- singapore to colombia
- sydney to colombia
- los angeles to colombia
- paris to colombia
- delhi to colombia
- mumbai to colombia
- berlin to colombia
- hong kong to colombia
- toronto to colombia
- kathmandu to colombia
See every conversion from Colombia →·See every conversion from London →