COT to ART
+2hCOT
COTSOURCEART
ARTGreen rows indicate typical business hours (9 AM - 5 PM)
COT and ART on the World Map
The map below highlights the COT (Colombia Time) and ART (Argentina 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.
ART – Argentina Time
UTC-03:00Argentina Time (ART) is the standard time for Argentina, 3 hours behind UTC.
- •Argentina does not observe daylight saving time.
- •Buenos Aires is one of the most visited cities in South America.
- •ART is the same offset as BRT (UTC-03:00).
Everything You Need to Know About COT and ART Time
COT runs on Colombia Time (COT) at UTC-05:00. ART runs on Argentina Time (ART) at UTC-03:00. That puts COT 2 hours ahead of ART — a difference of +2h at the current offsets.
In practice, when it is 9:00 AM in COT it is 11:00 AM in ART. Midnight in COT is 2:00 AM in ART. Neither zone observes daylight saving time, so the offset between them stays constant all year.
COT to ART time conversion table
| COT (COT) | ART (ART) | Day |
|---|---|---|
| 12:00 AM | 2:00 AM | same day |
| 6:00 AM | 8:00 AM | same day |
| 7:00 AM | 9:00 AM | same day |
| 8:00 AM | 10:00 AM | same day |
| 9:00 AM | 11:00 AM | same day |
| 12:00 PM | 2:00 PM | same day |
| 3:00 PM | 5:00 PM | same day |
| 5:00 PM | 7:00 PM | same day |
| 6:00 PM | 8:00 PM | same day |
| 9:00 PM | 11:00 PM | same day |
Why people convert COT to ART time
- Scheduling a call from COT to ART: a 10:00 AM start in COT lands at 12:00 PM in ART, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both COT and ART are inside the 9-to-5 working day between 9:00 AM and 3:00 PM COT time (11:00 AM–5:00 PM ART). That is roughly 6 hours of usable overlap.
- Keeping family and friends in sync: knowing that 8:00 PM in COT is 10:00 PM in ART makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM COT" is unambiguous; "3 PM" across a +2h gap is not.
- Block 9:00 AM–3:00 PM COT as the recurring meeting window if you work primarily from COT and need ART colleagues present.
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 ART (Argentina Time)
Argentina Time (ART) is the time zone used throughout Argentina. Argentina does not observe daylight saving time. ART shares the same offset as Brasilia Time (BRT) and Uruguay's UYT.
Best time to call between COT and ART
Both COT and ART sit inside the 9 AM – 5 PM working day between 9:00 AM–3:00 PM COT, which is 11:00 AM–5:00 PM ART. That gives roughly 6 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
COT and ART share 6 hours of working-hours overlap (9:00 AM–3:00 PM COT), so scheduling a live meeting is straightforward.
COT is 2 hours ahead of ART (COT UTC-05:00 → ART UTC-03:00). The shared working window is 9:00 AM–3:00 PM COT. Remember to re-check around daylight-saving transitions.
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 COT and ART?
COT (COT, UTC-05:00) is 2 hours ahead of ART (ART, UTC-03:00). The gap is currently +2h.
How do I convert COT time to ART time?
Add +2h to COT local time. For example, 9:00 AM in COT is 11:00 AM in ART.
What time is it in ART right now?
ART uses ART at UTC-03:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +2h offset from COT.
What is the best time to call ART from COT?
Call between 9:00 AM and 3:00 PM COT — that maps to 11:00 AM–5:00 PM ART and keeps both parties inside the working day.
Which is ahead, COT or ART?
COT is 2 hours ahead of ART. When it is 12:00 PM in COT it is 2:00 PM in ART.
Does daylight saving time affect the COT–ART difference?
Neither zone observes daylight saving time, so the +2h offset between COT and ART is fixed all year.
Which other cities share COT's time zone?
COT also covers Bogotá, Medellín, Cali, Barranquilla, Cartagena.
Which countries use COT, COT's zone?
COT is used in Colombia.
Is there a day difference between COT and ART?
Not normally. The +2h gap only pushes the date over for late-evening times.
What is the time difference between COT and ART?
ART is +2h from COT.
What timezone is COT in?
COT operates on its local timezone.
What timezone is ART in?
ART operates on its local timezone.
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 ART timezone?
Major cities in the ART timezone include Buenos Aires, Córdoba, Rosario, Mendoza, La Plata, Tucumán.
What is the UTC offset for ART?
Argentina Time (ART) is at UTC-03:00.
What should I know about the ART timezone?
Argentina does not observe daylight saving time. Buenos Aires is one of the most visited cities in South America.
When is it midnight in COT, what time is it in ART?
When it is 12:00 AM (midnight) in COT (COT), it is +2h later in ART (ART).
Related Developer Tools
Explore more tools that work great with timezone conversions for international teams:
Related Timezone Conversions
More COT time conversions
- cot to bogota
- cot to colombia
- cot to new york
- cot to london
- cot to dubai
- cot to tokyo
- cot to singapore
- cot to sydney
- cot to los angeles
- cot to paris
- cot to delhi
- cot to mumbai
- cot to berlin
- cot to hong kong
- cot to toronto
- cot to kathmandu
- new york to cot
- london to cot
- dubai to cot
- tokyo to cot
- singapore to cot
- sydney to cot
- los angeles to cot
- paris to cot
- delhi to cot
- mumbai to cot
- berlin to cot
- hong kong to cot
- toronto to cot
- kathmandu to cot
See every conversion from COT →·See every conversion from ART →