Bogotá to Tehran
+8h 30mBogotá
COTSOURCETehran
IRSTGreen rows indicate typical business hours (9 AM - 5 PM)
COT and IRST on the World Map
The map below highlights the COT (Colombia Time) and IRST (Iran Standard 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.
IRST – Iran Standard Time
UTC+03:30Iran Standard Time (IRST) is the time zone for Iran, 3 hours and 30 minutes ahead of UTC.
- •IRST is one of only a few time zones with a 30-minute offset.
- •Iran observes daylight saving time, switching to IRDT (UTC+04:30).
- •Tehran has a metropolitan population of over 16 million.
About Tehran
WikipediaTehran operates on Iran Standard Time (IRST), UTC+3:30. Iran's unique half-hour offset makes Tehran time distinctive for regional business coordination.
Iran Standard Time (IRST) is one of few timezones with a 30-minute offset (UTC+3:30).
Time Conversion Guide: Bogotá to Tehran
Bogotá runs on Colombia Standard Time (COT) at UTC-05:00. Tehran runs on Iran Standard Time (IRST) at UTC+03:30. That puts Bogotá 8 hours 30 minutes ahead of Tehran — a difference of +8h 30m at the current offsets.
In practice, when it is 9:00 AM in Bogotá it is 5:30 PM in Tehran. Midnight in Bogotá is 8:30 AM in Tehran. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Bogotá to Tehran time conversion table
| Bogotá (COT) | Tehran (IRST) | Day |
|---|---|---|
| 12:00 AM | 8:30 AM | same day |
| 6:00 AM | 2:30 PM | same day |
| 7:00 AM | 3:30 PM | same day |
| 8:00 AM | 4:30 PM | same day |
| 9:00 AM | 5:30 PM | same day |
| 12:00 PM | 8:30 PM | same day |
| 3:00 PM | 11:30 PM | same day |
| 5:00 PM | 1:30 AM | next day |
| 6:00 PM | 2:30 AM | next day |
| 9:00 PM | 5:30 AM | next day |
Why people convert Bogotá to Tehran time
- Scheduling a call from Bogotá to Tehran: a 10:00 AM start in Bogotá lands at 6:30 PM in Tehran, so you can confirm the slot without doing the arithmetic yourself.
- Handling a +8h 30m gap: Bogotá and Tehran have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in Tehran is 5:30 PM in Bogotá.
- Booking travel or deliveries: tracking Tehran local time against Bogotá keeps pickup windows and arrival estimates honest across the +8h 30m offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM COT" is unambiguous; "3 PM" across a +8h 30m gap is not.
- With a +8h 30m gap there is no shared 9-to-5 window, so alternate the early start: one week Bogotá takes the early slot, the next week Tehran does.
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 IRST (Iran Standard Time)
Iran Standard Time (IRST) is one of the few time zones with a 30-minute offset. Iran observes daylight saving time (IRDT, UTC+04:30) from late March to late September. Tehran, the capital, is one of the largest cities in the Middle East.
Best time to call between Bogotá and Tehran
With a +8h 30m offset there is no overlap inside a normal 9 AM – 5 PM day. Tehran opens at 9:00 AM IRST, which is 5:30 PM in Bogotá, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
Bogotá and Tehran have no shared working hours because of the +8h 30m gap. Teams need to alternate early starts or rely on asynchronous handovers.
Bogotá is 8 hours 30 minutes ahead of Tehran (COT UTC-05:00 → IRST UTC+03:30). There is no shared 9-to-5 window, so plan around an early or late slot. 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 Bogotá and Tehran?
Bogotá (COT, UTC-05:00) is 8 hours 30 minutes ahead of Tehran (IRST, UTC+03:30). The gap is currently +8h 30m.
How do I convert Bogotá time to Tehran time?
Add +8h 30m to Bogotá local time. For example, 9:00 AM in Bogotá is 5:30 PM in Tehran.
What time is it in Tehran right now?
Tehran uses IRST at UTC+03:30. Use the live converter at the top of this page — it updates in real time and already accounts for the +8h 30m offset from Bogotá.
What is the best time to call Tehran from Bogotá?
There is no shared working-hours window because of the +8h 30m gap. The closest option is 1:00 PM in Bogotá, which is 9:30 PM in Tehran.
Which is ahead, Bogotá or Tehran?
Bogotá is 8 hours 30 minutes ahead of Tehran. When it is 12:00 PM in Bogotá it is 8:30 PM in Tehran.
Do Bogotá and Tehran use different time zones?
Bogotá (Colombia) uses COT at UTC-05:00, while Tehran (Iran) uses IRST at UTC+03:30. The IANA identifiers are America/Bogota and Asia/Tehran.
Does daylight saving time affect the Bogotá–Tehran difference?
Neither zone observes daylight saving time, so the +8h 30m offset between Bogotá and Tehran is fixed all year.
Which other cities share Bogotá's time zone?
COT also covers Bogotá, Medellín, Cali, Barranquilla, Cartagena.
Which countries use COT, Bogotá's zone?
COT is used in Colombia.
Is there a day difference between Bogotá and Tehran?
Not normally. The +8h 30m gap only pushes the date over for late-evening times.
What is the time difference between Bogotá and Tehran?
Tehran is +8h 30m from Bogotá.
What timezone is Bogotá in?
Bogotá operates on its local timezone.
What timezone is Tehran in?
Tehran operates on Iran Standard Time (IRST), UTC+3:30. Iran's unique half-hour offset makes Tehran time distinctive for regional business coordination.
What are the business hours in Tehran?
Standard business hours in Tehran are 8:00 AM - 4:00 PM IRST.
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 IRST timezone?
Major cities in the IRST timezone include Tehran, Isfahan, Mashhad, Tabriz, Shiraz, Karaj.
What is the UTC offset for IRST?
Iran Standard Time (IRST) is at UTC+03:30. During daylight saving time, it shifts to IRDT.
What should I know about the IRST timezone?
IRST is one of only a few time zones with a 30-minute offset. Iran observes daylight saving time, switching to IRDT (UTC+04:30).
When is it midnight in Bogotá, what time is it in Tehran?
When it is 12:00 AM (midnight) in Bogotá (COT), it is +8h 30m later in Tehran (IRST).
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