Colombia has one time zone, Colombia Time (COT), which is located in the UTC−05:00 zone, 5 hours behind Coordinated Universal Time (UTC). Its standard time zone abbreviation is COT.^[1]

Colombia does not observe daylight saving time, but used it during eleven months between May 1992 and April 1993.

The official national time is kept by the National Metrology Institute (INM Colombia) since 2011.

In the IANA time zone database Colombia has the following time zone:

• America/Bogota (CO)

• Daylight saving time in Colombia

• Hora legal de Colombia at INM's website
• GMT: Greenwich Mean Time - World Time / Time in every Time Zone